轮机英语期末考试试题B卷
大连海事轮机英语题库电子版2022
大连海事轮机英语题库电子版20221、The teacher has his students_____a composition every other week. [单选题] *A.to writeB.writtenC.writingD.write(正确答案)2、38．These workers ___________ this bridge since one year ago. [单选题] * A．buildB．are buildingC．have built (正确答案)D．built3、She _______ be here. [单选题] *A. is gladB. is so glad to(正确答案)C. am gladD. is to4、--Don’t _______ too late, or you will feel tired in class.--I won’t, Mum. [单选题] *A. call upB. wake upC. stay up(正确答案)D. get up5、79．On a ________ day you can see the city from here. [单选题] *A．warmB．busyC．shortD．clear(正确答案)6、They all choose me ______ our class monitor.（）[单选题] *A. as(正确答案)B. inC. withD. on7、( ) What she is worried __ is ____ her daughter is always addicted to chatting online./; that [单选题] *A /; thatB of thatC about that(正确答案)D about what8、The relationship between employers and employees has been studied（）. [单选题] *A. originallyB. extremelyC. violentlyD. intensively(正确答案)9、You needn’t _______ me. I’m old enough to take care of myself. [单选题] *A. worry about(正确答案)B. write downC. put awayD. wake up10、( ) ____ eye exercises ___ good __ your eyes. [单选题] *A. Doing, is, for(正确答案)B. Doing, are, forC. Do, is, forD. Do, are, at11、73．（）about the man wearing sunglasses during night that he was determined to follow him．[单选题] *A. So curious the detective wasB.So curious was the detective(正确答案)C.How curious was the detectiveD.How curious the detective was12、We can _______ some information about this city on the Internet. [单选题] *A. look up(正确答案)B. look likeC. look afterD. look forward to13、26．—Mary, is this your pen?—No, it isn't. ________ is black. [单选题] *A．MyB．IC．MeD．Mine(正确答案)14、I could ______ control my feelings and cried loudly when I heard the bad news. [单选题] *A. hardly(正确答案)B. ?reallyC. clearlyD. nearly15、The hall in our school is _____ to hold 500 people. [单选题] *A. big enough(正确答案)B. enough bigC. very smallD. very big16、--Jimmy, you are supposed to?_______ your toys now.--Yes, mom. [单选题] *A. put upB. put onC. put away(正确答案)D. put down17、_______ travelers come to visit our city every year. [单选题] *A. Hundred ofB. Hundreds of(正确答案)C. Five HundredsD. Five hundred?of18、37．It’s fun _________ a horse with your best friends on the grass. [单选题] *A．to ride (正确答案)B．ridingC．ridesD．ride19、His picture is on show in London this month. [单选题] *A. 给...看B. 展出(正确答案)C. 出示D. 上演20、The teachers don't make us wear a school uniform and we can wear _____ we like. [单选题] *A. anyB. thatC. asD. what(正确答案)21、This is _________ my father has taught me—to always face difficulties and hope for the best. [单选题] *A. howB. whichC. that(正确答案)D. what22、Be careful with the knife. You may hurt _______. [单选题] *A. himselfB. ourselvesC. myselfD. yourself(正确答案)23、66．—How much meat do you want?—________．[单选题] *A．Sorry, there isn't anyB．I can't give you anyC．Half a kilo, please(正确答案)D．Twelve yuan a kilo24、( ) _____ New York _____ London have traffic problems. [单选题] *A. All…andB. Neither….norC. Both…and(正确答案)D. Either…or25、It is reported that the fire caused serious（）to that school building. [单选题] *A. damage(正确答案)B. destroyC. harmD.hurt26、91．—Do you live in front of the big supermarket?—No. I live ________ the supermarket ________ the post office. [单选题] *A．across; fromB．next; toC．between; and(正确答案)D．near; to27、3．Shanghai is my hometown. It’s ________ China. [单选题] *A．nearB．far away fromC．to the east ofD．in the east of(正确答案)28、Galileo was ____ Italian physicist and astronomer who invented _____ telescope. [单选题] *A. a, aB. the, theC. an, aD. an, the(正确答案)29、Simon does not（）his fellow workers because they often argue over trivial matters. [单选题] *A. get on with(正确答案)B. come up withC. do away withD. go on with30、The early Americans wanted the King to respect their rights. [单选题] *A. 统治B. 满足C. 尊重(正确答案)D. 知道。
《 轮机英语 》期末考试试卷附答案
《轮机英语》期末考试试卷附答案一、单项选择题(每小题4分，共60分)1. Modern linguistics differs from traditional grammar for it is mostly _________.（）A.prescriptiveB.descriptiveC. subjectiveD. Latin-based2. A linguist regards the changes in language and language use as ________.（）A. abnormalB. something to be fearedC.naturalD. unnatural3. Which of the following sounds is a voiced affricate?A. [dV]B.[tF]C.[z]D.[T]4. There are ___________morphemes in the word “disabled”?（）A. oneB. twoC. threeD. four5. In English, “dis-“ is called________?（）A. a free morphemeB. a suffixC. an infixD. a prefix6.Black English is probably the most widespread and most familiar ____ variety of the English language. （）A. regionalB. ethnicC. socialD. lower class7. The pair of words “alive” and “dead” are _____________.（）A. gradable antonymsB. complementary antonymsC. relational oppositesD. co-hyponyms8. ____ belong(s) to the Indo-European language family. （）A. EnglishB. GermanC. FrenchD. All of them9. The sentence “Kids like apples” is a___________.（）A. two-place predicationB. three-place predicationC. no-place predicationD. one-place predication10. What is the construction of the sentence: “The baby smiled?”（）A. subordinateB. coordinateC. exocentricD. endocentric11. F. de Saussure is a(n) _________ linguist. （）A. AmericanB. SwissC. BritishD. Russian12. Which of the following sounds is a voiced bilabial stop? （）A. [p]B. [m]C. [b]D. [t]13. Of the “words” listed below, __________ is not an English word. （）A. [spriN]B. [lkbi]C.[strikt]D. [5U:ziz]14. The affixes which manifest various grammatical relations or grammatical categories such as “-ing,-est” are called __________. （）A. derivational affixesB. free morphemesC. inflectional affixesD. roots15. The sentence containing two clauses joined by a linking word is called a ____________ sentence. （）A. coordinateB. simpleC. subordinateD. embedded二、填空题（每小题2分，共20分）1. Language is a system of a ____________ vocal symbols used for human communication.2.The linguistic study of meaning in the context of use is called p____________.3.The description of a language as it changes through time is a d___________ study.4.According to the Swiss linguist F. de Saussure, p___________ refers to the realization of language in actual use.5. The three branches of phonetics are labelled a____________ phonetics, auditory phonetics and acoustic phoneticsrespectively.6. M___________ is the smallest meaningful unit of language.7. S___________ is a subfield of linguistics that studies the sentence structure of language.8. The term a________ is used for oppositeness of meaning.9. S________ is the subdiscipline of linguistics that studies language in social contexts.10. Variation in language use associated with the sex of individual speakers is called g__________varieties.三、判断题（每小题2分，共10分）petence and performance mean, to N. Chomsky, much the same thing.（）2. The basic difference between a vowel and a consonant is that in the pronunciation of the former it is characterized by the absence of obstruction of the airstream and it does not have a place of articulation in the same sense as a consonant.（）3. In English, nouns, verbs, prepositions and adverbs are open classes since we can regularly add new words to these classes.（）4. Sentences are strings of words put together in a random order.（）5. Sense and reference are two terms often encountered in the study of meaning. They are two related but different aspects of meaning.（）四、翻译（每小题5分，共10分）1.1号重油分油机手动排渣后发生剧烈振动，经拆检清洁后装复，恢复正常工作。
海船船员-轮机部(航海英语)真题库二
海船船员-轮机部(航海英语)真题库二/5题 [单选题]（江南博哥）Duties shall be so organized by the chief engineer officer that the first watch at the commencement of a voyage and the subsequent relieving watches are _______ and otherwise fit for duty.A well trainedB in good luckC in good healthD sufficiently rested正确答案: D题 [单选题]Who is in charge of the main engine？A The chief engineer.B The second engineer.C The third engineer.D The fourth engineer.正确答案: B/5题 [单选题]Who is in charge of the auxiliary engines？A The chief engineer.B The second engineer.C The third engineer.D The fourth engineer.正确答案: C/5题 [单选题]Who is in charge of the auxiliary boilers？A The chief engineer.B The second engineer.C The third engineer.D The fourth engineer.正确答案: D题 [单选题]According to STCW 78/95，the abilities specified in the standards of competence are grouped as seven functions at three levels of responsibility，which of the following is not one of the three levels？A Navigating level.B Management level.C Operational level.D Support level.正确答案: A/5题 [单选题]STCW Convention describes that _______ are laid down for the certification of engineer officers in charge of a watch in a traditionally manned engine room，or the designated engineer in a periodically unmanned engine room.A available minimum requirementsB available maximum requirementsC mandatory minimum requirementsD mandatory maximum requirements正确答案: C题 [单选题]The _______ Convention is the first to establish basic requirements on training，certification and watchkeeping for seafarers on an international level.A STCW 78B STCW 10C SOLAS 74D SOLAS 88正确答案: A题 [单选题]When deciding the composition of the engineering watch，which may include _______ appropriately，many factors shall be taken into account.A satisfied engineersB qualified ratingsC satisfied chief engineerD qualified chief engineer正确答案: B题 [单选题]When deciding the composition of the engineering watch，which may include appropriately qualified ratings，which of the following criteria shall be taken into account？①The type of ship；②The type and condition of the machinery；③The safety of life，ship，cargo and port；④The observance of international，national and local regulations.A ①②.B ②③.C ②③④.D ①②③④.正确答案: D题 [单选题]The maximum Blood Alcohol Concentration （BAC）rate on board shall not be more than _______ by weight any time when being tested.But watch-keepers are not allowed to drink any alcoholic beverage _______ before their watch.A 0.08%/4 hoursB 0.08%/2 hoursC 0.04%/4 hoursD 0.04%/2 hours正确答案: A/5题 [关联题]The CO₂ fire extinguishing installation may incorporate a smoke sampling system so that fire can be detected in the early stage at the smoke detecting cabinet，which is situated in the wheelhouse.Each cargo compartment is individually connected to the smoke detecting cabinet with small bore piping and，by a suction fan mounted on the wheelhouse roof，samples of the air in each cargo space are continually drawn up to the smoke detecting cabinet and discharged into the wheelhouse or the atmosphere through a diverting valve.Thus smoke from a fire in any cargo space can be immediately detected.The CO₂ fire extinguishing system may combine with _______ to detect fire in the early stage of fire development.A a smoke detecting systemB a wheelhouseC a cargo compartmentD a crew’s cabin正确答案: A/5题 [关联题]The CO₂ fire extinguishing installation may incorporate a smoke sampling system so that fire can be detected in the early stage at the smoke detecting cabinet，which is situated in the wheelhouse.Each cargo compartment is individually connected to the smoke detecting cabinet with small bore piping and，by a suction fan mounted on the wheelhouse roof，samples of the air in each cargo space are continually drawn up to the smoke detecting cabinet and discharged into the wheelhouse or the atmosphere through a diverting valve.Thus smoke from a fire in any cargo space can be immediately detected.The function of the smoke sampling system is _______.A to analyze smoke componentsB to detect fire in the early stageC to prevent the wheelhouse from catching a fireD to ventilate each cargo compartment正确答案: B/5题 [关联题]The CO₂ fire extinguishing installation may incorporate a smoke sampling system so that fire can be detected in the early stage at the smoke detecting cabinet，which is situated in the wheelhouse.Each cargo compartment is individually connected to the smoke detecting cabinet with small bore piping and，by a suction fan mounted on the wheelhouse roof，samples of the air in each cargo space are continually drawn up to the smoke detecting cabinet and discharged into the wheelhouse or the atmosphere through a diverting valve.Thus smoke from a fire in any cargo space can be immediatelydetected.According to this passage，which of the following statements is true？A The smoke sampling system consists of the CO₂ fire extinguishing installation and smoke detecting cabinet.B The smoke detecting cabinet is located on the wheelhouse roof.C The suction fan draws samples of the air from cargo spaces.D Samples of the air flow into the detecting cabinet at regular intervals.正确答案: C/5题 [关联题]The CO₂ fire extinguishing installation may incorporate a smoke sampling system so that fire can be detected in the early stage at the smoke detecting cabinet，which is situated in the wheelhouse.Each cargo compartment is individually connected to the smoke detecting cabinet with small bore piping and，by a suction fan mounted on the wheelhouse roof，samples of the air in each cargo space are continually drawn up to the smoke detecting cabinet and discharged into the wheelhouse or the atmosphere through a diverting valve.Thus smoke from a fire in any cargo space can be immediately detected.Which of the following devices does the smoke sampling system consist of？①Fire extinguishing installation；②Smoke detecting chamber；③Wheelhouse；④Cargo compartment；⑤Suction fan；⑥Diverting valve.A ①②⑤.B ②④⑤.C ③④⑥.D ②⑤⑥.正确答案: D题 [关联题]A variety of devices exist for detecting fires namely：（1）Smoke detectors based on the ionization principle or on the photoelectric cell principle；（2）Heat sensors；（3）Rate of temperature rise sensors；（4）Flame detectors. Each type has its merits and most systems will deploy two or more of the above types of devices depending on the space being protected. Within machinery spaces，ionization smoke detectors are generally considered the first line of defense.These devices monitor the electrical charge which occurs when combustion particles reach the charged space in the detector.So that the units can be readily tested as an indicator light is provided on the sensor body.This lights up in the presence of gas from a test canister or even from the fumes of a cigarette.Which of the following detectors are based on the charges or light principle？A Smoke detectors.B Heat sensors.C Temperature rising sensors.D Flame detectors.正确答案: A题 [单选题]If the PSCO is uncertain about the source of water pressuring during the inspection of fire main system.In such case，you can test the _______ for him.A fire main isolating valve on deckB engine room fire main isolating valveC engine room fire pumpD engine room general service pump正确答案: B题 [单选题]During the PSC inspection，under the provisions of SOLAS 74，which one may be regarded as“clear grounds”for ships’detainment？A Failure of proper operation of propulsion.B Paint peeling off the uptake.C No operation procedures for the oil separators.D Damaged sanitary pump.正确答案: A题 [单选题]During the PSC inspection，under the provisions of SOLAS 74，which of the following may not be regarded as“clear grounds”for ships’detainment？A Excess amount of oil/water mixtures in bilges.B Insulation of piping including exhaust pipes in engine room contaminated by oil.C Improper operation of bilge pumping arrangements.D A dirty footprint on the plate.正确答案: D题 [单选题]During the PSC inspection，under the provisions of SOLAS 74，which of the following may not be regarded as“clear grounds”for ships’detainment？A Failure of proper operation of emergency generator.B Insulation of piping including exhaust pipes in engine roomcontaminated by oil.C Improper operation of bilge pumping arrangements.D Leakage of the sanitary pump.正确答案: D题 [单选题]During the PSC inspection，under the provisions of SOLAS 74，which one may not be regarded as“clear grounds”for ships’detainment？A Failure of the proper operation of the auxiliary steering gear.B Failure of proper operation of electrical installations.C Leakage of domestic water pump.D Insulation of exhaust pipes in engine room contaminated by oil.正确答案: C题 [单选题]Who will be responsible for ensuring that a ship maintains a standard at least equivalent to that specified in international conventions？A Port State.B The Administration.C The shipowner.D The master.正确答案: B/5题 [单选题]Enhanced procedures concerning the exercise of _______ have been developed to allow intervention in the caseof deficiencies deemed to pose a danger to persons，property or the environment.A Port State ControlB Flag State ControlC fire and boat drillD safety inspection正确答案: A题 [单选题]The purpose of PSC is _______.A to check and inspect foreign shipsB to verify the condition of a ship in compliance with requirements of international conventionsC to fine shipsD to detain ships正确答案: B题 [单选题]The main purpose of Port State Control is not to _______.A prevent an unsafe ship proceeding to seaB prevent a ship threatening the marine environmentC fine the shipsD confirm a safe sailing正确答案: C题 [单选题]If the PSCO from general impressions orobservations on board has _______ for believing that the ship，its equipment or its crew do not substantially meet the requirements，the PSCO should proceed to a more detailed inspection.A “clean report”B “serious deficiencies”C “clear grounds”D “detention report”正确答案: C题 [单选题]If an incorrect entry were made in the Oil Record Book，you should _______.A erase the entry and rewrite itB notify the ship’s officer in chargeC completely black it out and make the correct entry alongsideD draw a single line through the wrong entry and initial it正确答案: D题 [单选题]The Garbage Record Book，as a part of the ship’s Official Logbook，shall be kept on board and preserved for a period of _______.A 3 years after making the first entryB 2 years after the last entryC 3 months after the last entryD 3 years after the last entry正确答案: B题 [单选题]Which of the following operations must be entered on the Oil Record Book Part Ⅰ？①Routine discharge at sea of bilge water containing oil from the machinery spaces；②Bunkering of fuel oil.A ① only.B ② only.C Both ① and ②.D Neither ① nor ②.正确答案: C题 [单选题]Which of the following operations need NOT to be entered on the Oil Record Book Part Ⅰ？①Routine discharge at sea of bilge water containing oil from the machinery spaces through strainers；②Bunkering of fuel oil.A ① only.B ② only.C Both ① and ②.D Neither ① nor ②.正确答案: D题 [单选题]Which of the following operations need NOT to be entered on the Oil Record Book Part Ⅰ？①Disposal of oil residues；②Internal transfer of fuel oil.A ① only.B ② only.C Both ① and ②.D Neither ① nor ②.正确答案: B题 [单选题]Administrations should bear in mind the significance of _______ in maintaining safety of life and property at sea and in preventing marine pollution.A advanced nautical equipmentB advanced main engine’s performanceC emergency equipmentD communication and language skills正确答案: D/3题 [单选题]When a ship is involved in an oil pollution incident in China，the ship must report without delay to_______.A China Maritime AdministrationB the CompanyC the cargo ownerD the Flag State正确答案: A/3题 [单选题]Which statement is TRUE concerning minor oil spills？A They may cause serious pollution as the effect tends to be cumulative.B They usually disappear quickly.C They usually stay in a small area.D A small spill is not dangerous to sea life in the area.正确答案: D/3题 [单选题]Which statement is TRUE concerning minor oil spills？A They may cause serious pollution as the effect tends to be cumulative.B They usually disappear quickly.C They usually stay in a small area.D A small spill is not dangerous to sea life in the area.正确答案: D/3题 [单选题]Which statement is TRUE concerning minor oil spills？A They may cause serious pollution as the effect tends to be cumulative.B They usually disappear quickly.C They usually stay in a small area.D A small spill is not dangerous to sea life in the area.正确答案: D/5题 [单选题]_______，where minor repairs are carried out with a ship in service，is/are often carried out during a stay in port.This may be remote from a ship repair site.A Voyage repairB Damage repairsC Routine dockingD Conversion正确答案: A题 [单选题]What is NOT true of annual repair？A It is carried out once a year.B It is a minor repair.C It is done according to the requirements of Registration Bureau.D It is carried out during stay in a port of call.正确答案: D题 [单选题]Preventive maintenance _______.A should not be carried out during the watchesB can only be carried out in portC is a kind of maintenance carried out prior to the occurrenceD is a kind of maintenance carried out after the occurrence正确答案: C题 [单选题]During the inspection，the starting air valves should be closed _______ the engine from turning.A to increaseB to preventC to speed upD to reduce正确答案: B/5题 [单选题]Which of the listed items should be secured before performing any maintenance on a solenoid operated air start valve？A Electric power and starting air.B Lube oil standby pump and control air.C Hydraulic switch and engage jacking gear.D Motor drain and pneumatic control system power.正确答案: A/5题 [单选题]Usually _______ handles the majority of the correspondence and negotiation needed during transactions of stores and spare parts in the engine department.A the chief engineerB the second engineerC the third engineerD the fourth engineer正确答案: A题 [单选题]Generally speaking，the agent can provide many services on board except _______.A port shippingB mailC banking serviceD recruiting seaman正确答案: D/5题 [单选题]Generally speaking，who will you turn to when there is a problem during accepting stores from ashore？A Bridge.B Captain.C The second engineer and the third engineer.D The chief engineer.正确答案: C4 /5题 [单选题]A/An _______ is the documentary attestation for the delivery of stores and spare parts.A engine logbookB delivery docketC store bookletD maintenance book正确答案: B/5题 [单选题]A/An _______ is the documentary attestation for the delivery of stores and spare parts.A informative noteB consignment noteC store bookletD maintenance book正确答案: B/5题 [单选题]Which of the following conditions indicates the dilution of diesel engine lube oil by fuel oil？A Water discharging from the water outlet of the lube oil purifier.B Fuel oil discharging from the water outlet of the lube oil purifier.C Lube oil discharging from the water outlet of the lube oil purifier.D A change in the lube oil viscosity.正确答案: D/5题 [单选题]Under normal conditions，the main source of crankcase oil contamination is attributed to _______.A metal particles loosened by wearB air when air cleaners are not usedC condensation of water vaporsD breakdown of the lubricating oil by dilution正确答案: D题 [单选题]Which of the following conditions is most likely to occur when unburned fuel contaminates the crankcase of a diesel engine？A Lube oil is diluted and its viscosity is reduced.B Sulfuric acid is formed.C Bearings become pitted ad immediately fail.D Valve stems develop sludge deposits.正确答案: A/5题 [单选题]Lubricating oil viscosity in all operating diesel engine can be reduced by _______.A increasing cooling water flowB increasing lube oil flowC dilution by fuel oilD adding SAE 70 oil正确答案: C5 /5题 [单选题]oil oxidation，as a result of excessively high lube oil temperature，is harmful to a diesel engine because _______.A oil foaming will occurB large quantities of oil are consumedC lube oil viscosity is always decreasedD corrosive by-products are usually formed正确答案: D题 [单选题]The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the _______.A flash pointB fire pointC upper explosive limitD lower explosive limit正确答案: B题 [单选题]The percentage of impurities in a specific fuel oil sample is determined by _______.A settling in a fuel tankB testing in a laboratory centrifugeC burning in a calorimeterD testing in a dosed cup正确答案: B3 /5题 [单选题]What should we do if the oil spill occurs？A Stop the pump first.B Report to the chief engineer.C Inform the bridge.D Take oil samples.正确答案: A题 [单选题]Small oil spills on deck can be kept from going overboard by _______.A plugging the scuppersB driving wooden plugs into the ventsC closing the lids on the ventsD plugging the sounding pipes正确答案: A题 [单选题]You should be most concerned about a possible explosion or fire in fuel tanks _______.A during fueling when the fuel first strikes the tank bottomB during fueling when the fuel strikes fuel already in the tankC when underway as the fuel is moved by wave actionD shortly after fueling when fuel vapors gather正确答案: A/5题 [单选题]Among the following equipment，which belongs to the life saving appliances？①Lifeboats；②Fire axes；③Self-contained breathing apparatus；④Life buoys；⑤Emergency generator；⑥Breathing apparatus air compressor.A ①④⑤.B ①③⑥.C ③④⑤.D ④⑤⑥.正确答案: A全站正确率为 0.00%/5题 [单选题]If you continue to wear extra clothing when entering the water after abandoning your vessel，it will_______.A weigh you downB preserve body heatC reduce your body heatD make it more difficult to breathe正确答案: B题 [单选题]In the first 24 hours after abandoning a vessel，water should be given only to personnel who are _______.A thirstyB sick or injuredC wetD awake正确答案: B4 /5题 [单选题]Seawater may be used for drinking water _______.A at a maximum rate of two ounces per dayB after mixing with an equal quantity of fresh waterC if gather during or immediately after a hard rainD under no circumstance正确答案: D/5题 [单选题]If you are forced to abandon ship in a rescue boat，you should _______.A remain in the vicinity of the vesselB head for the nearest landC head for the closest sea lanesD have an all hands vote on what to do题 [单选题]To use a portable CO₂ fire extinguisher，you must first _______.A turn the tank upside downB pull the locking pinC open the valve on the side of the tankD shake thoroughly正确答案: B题 [单选题]When the general alarm is sounded continuously，the engine room personnel should _______.A proceed to their man overboard stationsB start the fire pumpC put on lifejackets and go to their abandon ship stationsD secure the propulsion diesel engines and evacuate the engine room正确答案: B题 [单选题]Which of the following actions should be taken by the engine room watch when the general alarm is sounded continuously？A The fire pump should be started.B The boiler fires should be secured.C The fixed CO₂ system should be initiated into action.D The engine room ventilation should be secured./5题 [单选题]While on watch in the engine room，you hear a continuous sounding of the general alarm.Which of the following actions should you take FIRST？A Secure the burners then proceed to your assigned boat station.B Start the fire pump and establish flow to the fire main.C Open the guardian valve and standby to maneuver.D Open the master control valves on the fixed CO₂ system.正确答案: B/5题 [单选题]While on watch in the engine room，you hear a continuous sounding of the general alarm.Which of the following actions should you take？A Make an entry in the official logbook.B Open the master control valves on the fixed CO₂ system.C Start the fire pump and check discharge pressure.D Secure auxiliary condenser overboard discharge.正确答案: C。
航海英语期末考试试题B卷
《航海英语》B卷姓名：成绩：一、单项选择题（每题2分共70分）1.The sprinkler system of a survival craft is used to ______.A. cool the craft in a fireB. cool the engineC. spray oil on the sea to calm itD. spray personnel during a fire2.Keeping the draft at or below the load line mark will insure that the vessel has adequate ____.A. ballastB. reserve buoyancyC. displacementD. rolling periods3.The terminal staff tallies the cargo mainly before the ship’s ____________.A. loadingB. leavingC. arrivingD. sailing4.The tropical cyclone at 15.8N,132.4E has yesterday afternoon ____ into a tropical storm withmax winds 70 knots near center. )A. upgradedB. decreasedC. becomeD. changed5. A hurricane moving northeast out of the gulf passes west of your position. You could expectall of the following except ____.A. higher than normal swellsB. high windsC. winds veering from south, through west, to northwestD. light showers6.Generally speaking, with ____ the weather becomes cloudy or overcast with strong winds.A. high pressuresB. low pressuresC. weak pressuresD. strong pressures7.Upon underwater ____ by divers, there are no apparent ____ on the bottom plates of the saidvessel.A. detection, defectsB. detection, defectsC. defects, detectionD. defects, detection8.Molded depth is measured from the ____.A (2038)A. inside of the shellB. outside of the shellC. top of the center vertical keelD. top of the garboard stake9.The portable radio apparatus means ____. C (0588)A. the radio apparatus fitted on the portsideB. the radio with a portable equipmentC. the radio equipment which is easily movableD. the portable radio with some apparatuses10.Cleaning, painting and repairing work is known as ____________A.Maintenance workB. Lashing workC. Tallying workD. Overtime work11.SWEEP INT on radar panel is the abbreviation of ____. D(1325)A. sweep introductionB. sweep interestC. sweep intentionD. sweep intensity12.The abbreviation PPI in the Sperry collision avoidance system means ___.A. plan position indicatorB. plain position indicatorC. plane position indicationD. policy proof of interest13.Deviation is the angle between the ____. A. true meridian and the axis of thecompass cardB. true meridian and the magnetic meridianC. magnetic meridian and the axis of the compass cardD. axis of the compass card and the degaussing meridian14.The best way to test the INMARSAT-C terminal is to ________.A. send a message to a shore terminal and wait for confirmationB. compose and send a brief message to your own INMARSAT-C terminalC. send a message to another terminalD. see if the send light flashes, then proper operationhas been confirmed.15.Port of registry refers to the port where ____.A. the ship has been namedB. the ship has been builtC. the ship has been signedD. the ship has been registered16.Any person maintaining a listening watch on a bridge to bridge radio-telephone must be ableto ____.A. speak EnglishB. repair the unitC. speak SpanishD. send Morse code17.Where shall the key to CO2 room be kept?A. In master’s cabinB. In third officer’s cabinC. In a break-glass-type enclosureconspicuously located adjacent to the roomD. In a locked locker conspicuously located adjacent to the room18.Instruction on how to conduct search and rescue are given in the _____ which is primarilydesigned for uuse by merchant ship.A. MARPOLB. IRPCSC. SOLASD. MERSAR19.A vessel emitting harmful substances into the air or spilling oil into the sea is a ____.A. polluterB. emitterC. spillerD. oilier20.The pilotage-quarantine anchorage, ____ between Damen Island and Qingshan Island, isdefined by the lines ____ the given points. B(1293)A. situated / connectedB. situated / connectingC. situating / connectedD. situating / connecting21.The last shot of an anchor cable is usually painted ____. D(2664)A. whiteB. international orangeC. yellowD. red22.When anchoring a vessel, it is best to release the anchor when _______.A. going full asternB. going full aheadC. going slow asternD. dead in the water23.It is sometimes necessary to moor bow and stern to two mooring buoys in order to ____.A. avoid any swing in a restricted spaceB. shelter the ship from strong windsC. prevent to touch with other vesselsD. make a convenience of cargo discharging24.Reducing the liquid free surface in a vessel reduces the __A___.A. roll periodB. metacentric heightC. waterplane areaD. vessel’s draft25.When are you allowed to throw plastic garbage overboard?A. Being more than 25 miles from shortB. Only at night when it’s darkC. Being more than6 miles from shore D. Never26.A twin-screw ship going ahead on the starboard screw only tends to move ____. B(2269)A. in a straight lineB. to portC. from side to sideD. to starboard27.When underway in a channel, you should keep to ____. B(0059)A. the middle of the channelB. the starboard side of the channelC. the port side of the channelD. the side of the channel with the widest turns28.The rules state that vessels may depart from the requirements of the rules when ____. D(0162)A. there are no other vessels aroundB. operating in a narrow channelC. the master enters it the ship’s logD. necessary to avoid immediate danger29.Your ship is steaming at night wi th the gyro pilot engaged. You notice that the vessel’s courseis slowly changing to the right. Which action should you take first? ____. B(1055)A. Notify the engine room of the steering malfunctionB. Change to hand steeringC. Call the masterD. Send the quartermaster to the emergency steering station30.A vessel engaged in replenishment or transferring persons，provisions or cargo while underway can be regarded as ______.A. a vessel restricted in her ability to maneuverB. a vessel engaged in laying，serving or picking up a navigation mark，submarine cable orpipeline．C. a vessel not under commandD. a power-driven vessel．31.A line on the Earth B the equator is a ____.A. gnomonic curveB. small circleC. meridianD. great circle32.The positions and characteristics of lights and buoys shown within the port area are ____.A. untrueB. impossibleC. suspectfulD. unimportant33.When latitude and longitude are used, these shall be expressed ____ (and decimals of aminute if necessary), north or south of the equator and east or west of Greenwich.A. fathoms and metersB. miles and kilometersC. arc and degreesD. in degrees and minutes34.The navigational term set of current means ____.A. velocity of current in knotsB. direction from which the current flowsC. estimated currentD. direction toward which the current flows35.When there are small differences between the heights of two successive high tides or twosuccessive low tides, the tides are called ______.A. diurnalB. semi-diurnalC. solarD. mixed二、翻译(5×6=30分)1.你正在靠泊一条船，如果可能，你应该逆流靠泊。
轮机英语
2218. Lubricating oil systems are fitted with a wide variety of strainers some
of which can be cleaned in site while others have replaceable cartridgesThe bold
A． a priming device
B． a discharge branch √
C． a filter
D． a suction valve
2221. Every liquid has a pressure at which it will vaporize and this pressure
A． aeration tanks
B． settling tanks
C． disinfection agent
D． anaerobic bacteria √
2212. In its simplest form the pressure reducing valve is opened or closed by
downstream pressureThe bold and italic word “which” means _____√
A． a pressure reducing valve
B． a pilot valve √
C． an operating piston
D． downstream pressure
in which a perforated metal or wire basket is suspendedThe bold and italic word
轮机英语期末考试试题B卷
《轮机英语》B卷姓名：成绩：单项选择题（每题2分共100分）一、单项选择题1.The ______engine is used for alternators and some times for main propulsion with a gearboxto provide a propeller of between 90 to 120 rpm。
A。
four—stroke B. two-stroke C。
slow speed D. reversible2.The discharge flow of a reciprocating pump is ______。
A。
steady B。
in pulsation C。
continuous D. large3.The cetane number of a diesel fuel oil indicates its ______。
A. viscosityB. acid content C。
heating value D. ignition quality4.Always ensure that the turning gear is______，even at the quay，the wave from other shipsmay turn the propeller and thus the engine。
A。
disengaged B. engaged C。
assembled D. disassembled 5.Camshafts are usually driven by timing gears or ______.A。
push rods B. chain drives C。
rocker arms D. flywheels6.The cylinder oil is pumped into the cylinder (via non-return valves) when the piston ringspass the lubricating orifices, during______。
第46期轮机英语试题
第46期轮机英语试题一、单项选择题1. In order to control thermal stresses ,some type of modern engines use piston with______.A. heavy wall and intensive coolingB. heavy wall and no coolingC. thin wall and no coolingD. thin wall and intensive cooling2. The average pressure exerted on a piston during each power stroke is termed______.A. indicated horsepowerB. mean effective pressureC. exhaust back pressureD. compression pressure3. The ignition quality of a diesel fuel is indicated by the ______.A. cetane numberB. volatility pointC. viscosity indexD. octane number4. A piston in a four-stroke/cycle diesel engine makes four strokes during each ______.A. crankshaft revolutionB. mechanical cycle of operationC. period of two combustion cyclesD. cycle of two events5. Crankshafts of medium speed engines are ______ from a single piece of steel.A. unusually solid weldedB. never be solid forgedC. almost invariably solid forgedD. almost invariably be welded6. The starting air entering the cylinder begins when the piston______.A. has nearly come to the TDCB. has just past the TDCC. has nearly come to the BDCD. has just past the BDC7. A main bearing consists of two shells which are secured by means of studs and ______.A. tie rodsB. through boltsC. lead wiresD. bearing caps8. Compared to four-stroke/cycle engines, two-stroke/cycle diesel engines have the disadvantage of ______.A. less even torqueB. higher cylinder head temperaturesC. fewer power strokes per revolutionD. greater weight/size requirements9.______ controls the fuel oil temperature in order to provide oil at the correct viscosity for combustion.A. The viscosity regulatorB. The temperature controllerC. The flow meterD. greater weight/size requirements10. In a diesel engine lube oil system, which of the following parts should be lubricated first?A. Camshaft bearingsB. Main bearingsC. Piston crownsD. Cylinder walls11. A large, low-speed, main propulsion diesel engine uses sea water to directly cool the ______.A. cylinder headsB. exhaust valvesC. scavenging airD. injectors12. In a turbocharger, inlet air velocity is increased in the ______.A. inlet nozzle ringB. stationary diffuser passagesC. compressor outlet voluteD. rotating impeller vanes13. Each cylinder has one starting valve which is usually opened by air pressure and closed by______.A. nuts and boltsB. new jointsC. spring forceD. sealing rings14. In a simple mechanical governor, the ______.A. centrifugal force rotates the ball-headB. flyweight centrifugal force is balanced by spring forceC. flyweight centrifugal force is balanced by hydraulic pressureD. speeder spring alone actuates the fuel control rod15. A pyrometer is an instrument commonly used to measure ______.A. cylinder pressureB. flame intensityC. exhaust gas temperatureD. crankshaft axial alignment16. After starting a diesel engine, which of the listed operating conditions should be checked first?A. Air box pressureB. Lube oil pressureC. Exhaust temperaturesD. Raw water pressure17. A high temperature alarm or ______ which will melt is used to guard against the explosion of compressor air pipelines.A. a flame trapB. a relief valveC. a fusible plugD. a bursting cap18. What preventative maintenance should be done frequently to diesel engines starting air receivers?A. Drain the accumulated moistureB. Test the relief valvesC. Watch the temperature to prevent fluctuation in pressureD. Clean the interior to remove oil and foreign matter19. In reducing engine speed to an efficient propeller speed by the use of reduction gears, ______.A. speed and torque are both reducedB. speed is reduced and torque remains unchargedC. speed is reduced and torque is increasedD. speed is sometimes unchanged while torque is increased20. Which of the following statements concerning fire-tube boilers is correct?A. Combustion gases flow through the tubesB. Flames impinge on the tubesC. Combustion occurs in the tubesD. Water flows through the tubes21. The exhaust boilers are used to recover some of ______ carried in the exhaust gas from the main engine.A. waterB. oilC. heatD. steam22. The water level in a steaming auxiliary boiler will always ______.A. rise when the steam pressure is increasedB. remain constant as long as the feed pump operatesC. fall when the steam pressure is decreasedD. vary as the steam demand changes23. When lighting off an auxiliary boiler, which of the problems listed could cause the burners to sputter?A. Cold fuel oilB. Low fuel oil pressureC. Low atomizing steam pressureD. Water in the fuel oil24. If the feed pump for an auxiliary boiler fails to deliver the feed water to the boiler, the cause may be ______.A. high steam pressure in the boilerB. abnormally high feed-water temperatureC. abnormally high boiler water temperatureD. steam demand exceeding feed pump capacity25. Through a ______ pump, the liquid is transferred from the suction to the discharge by themechanical variation of the volume of a chamber or chambers.A. positive displacementB. ejectorC. centrifugalD. air compressor26. Sealing lines provide sealing liquid flow to the stuffing box of a centrifugal pump______.A. to prevent seawater from passing out the stuffing box when a high suction head is presentB. to cool the shaftC. in place of mechanical sealsD. in place of lantern rings27. Which of the valves listed will be cycled from fully open to fully close when the handle is turned 90 degree?A. A rising steam gate valveB. A globe stop valveC. A check valveD. A butterfly valve28. Centrifugal pumps, used to handle hot liquids, must have a minimum flow through them under all operating conditions. This flow serves to ______.A. prevent overheating and damage to pump rotating parts due to rubbingB. maintain the net positive suction head of the pumpC. maintain hydraulic differential in the pump impeller passagesD. purge the pump of non-condensable vapors and gases29. If you heard a …crankling ‟noise in a centrifugal pump, the most probable cause of the problem would be ______.A. insufficient speedB. cavitationC. excess discharge pressureD. excessive net positive suction head30. In the process of ______, liquid changes into gas.A. evaporationB. frostingC. condensingD. compressing31. The device used for low-pressure control and high-pressure cutout on a compressor is called a ______.A. cutoutB. pressure controllerC. controller switchD. cutout switch32. A purge recovery system is used in central air conditioning or refrigeration system to ______.A. purge lube oil from the liquid refrigerantB. recover water purged from the systemC. separate foul gases from the receiverD. purge non-condensable gases without losing refrigerant33. In an air conditioning system, low head pressure associated with a reciprocating compressor can be the result of ______.A. broken valve springsB. tight drive beltsC. high line voltageD. air in the system34. When discharging bilge water over board, which criteria must be observed?A. The requirement for the oil content of bilge water discharged is under 15 ppmB. No discharge in sensitive watersC. Any discharge in sensitive watersD. International, national or local requirements have to be observed35. The following measures can be used to improve oily water separator‟s separating effect except ______.A. overhauling every two yearB. working at intervalsC. renewing filtration materialD. properly heating36. Disposal of all kinds of garbage but ______ listed as below is prohibited whining Special Areas.A. comminuted or ground papers, rags, glass, metal etcB. plasticsC. food waste comminuted or groundD. Incinerator ash37. When does auxiliary burner of incinerator put into operation?Ⅰ、start incinerator when it is cold Ⅱ、little waste oil for dealing withⅢ、plenty of waste oil for dealing withⅣ、the water and impurity in sludge are too muchⅤ、the temperature in incinerator is lowⅥ、dealing with little solid rubbishA. Ⅱ+Ⅲ+ⅤB. Ⅰ+ Ⅱ+Ⅲ+ⅣC. Ⅰ+Ⅳ+Ⅴ+ⅥD. Ⅰ+ Ⅱ+Ⅲ+ Ⅵ38. Bacteria which live ______ are said to be aerobic.A. in the presence of oxygenB. without oxygenC. in the presence of nutritionD. without nutrition39. When centrifuging heavy fuel oil , an important factor to consider is (are) the ______.①flow rate②viscosity of the fuel oilA. ①B. ②C. ①②D. Neither ① nor ② are correct40. To ensure lube oil purifier working in normal condition, the interval between two sludge discharging should not exceed ______ hours.A. 2B. 4C. 5D. 641. ______ can not cause oil flow from water outlet of self cleaning purifier.A. Oil temperature too highB. Diameter of gravity disc too largeC. Oil temperature too lowD. High level tank out of water42. In the production of freshwater from seawater through a process of heating and cooling, the cooling phase of production is usually called ______.A. evaporationB. distillationC. dehydrationD. condensation43. Distilled water from an evaporator may be discharged into a potable water tank ______.A. through a detachable hose connectionB. after passing through an activated charcoal filterC. after chemical analysis shows it is fit for consumptionD. through a solenoid operated three-way valve44. What type of valve is used to direct the flow of hydraulic fluid?A. relief valveB. direction control valveC. stop valveD. pressure control valve45. Cargo handling unit is rated according to the ______ to be lifted.A. cargo craneB. jibC. safe working loadD. oil pressure46. The crane is usually mounted on a pedestal to offer adequate ______to the operator.A. timeB. spaceC. lengthD. visibility47. Proper internal lubrication of a hydraulic anchor windlass left idle for extended periods can be accomplished by ______.A. performing a check run on the unit at regular intervalsB. testing the hydraulic fluid for proper PHC. checking the reservoir for proper levelD. cleaning strainers at regular intervals48. ______ are used for hauling in or letting out the wires which fasten the ship to the shore.A. Cargo winchesB. Mooring winchesC. WindlassesD. Cargo hatches49. The major source of chemical contaminants in hydraulic fluid is ______.A. microscopic steel shavingsB. abrasive wasteC. anti-oxidant compoundsD. oxidation by-products50. If you install a new hydraulic hose in a hydraulic system , the hose must be long enough to allow for contraction to prevent______.A. failure of the hydraulic hoseB. excessive flow through the lineC. friction in other areas of the hydraulic systemD. overheating of the hydraulic fluid51. A circuit that has one wire in contact with the hull of the ship is a ______.A. series circuitB. grounded circuitC. short circuitD. closed circuit52. The frequency of an alternator at a given r/min is determined by the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage53. The operation of paralleling two alternators requires the voltages to be _____and also in phase.A. zeroB. eliminatedC. differentD. equal54. The frequency of an AC generator is controlled by the ______.A. rheostatB. governorC. exciterD. capacitor55. A motor enclosure which protects against falling liquids is classified as ______.A. water-proofB. drip-proofC. spray-tightD. spray-proof56. ______ are supplied with electricity by main switchboard directly.A. Suez Canal searchlight, air compressor and air conditioning compressor.B. Air compressor, boiler blower and refrigeration plantC. Boiler blower, Suez Canal searchlight and refrigeration plantD. Suez Canal searchlight and boiler blower57. ______ is not installed on the emergency switchboard.A. AmmeterB. V oltmeterC. WattmeterD. Synchroscope58. When two D.C. generators operate in parallel, they are protected against motorizing by ______.A. blow out coilsB. governor relayC. under voltage tripsD. reverse current trips59. Moisture in a D.C. motor would cause ______.A. short circuitB. speed upC. slow downD.hunting60. The part of a fuse that melts and opens the circuit is made of ______.A. copper and antimonyB. steel and babbittC. aluminum or beryllium alloyD. zinc or an alloy of tin and lead61. The main purpose of an electric space heater installed in a large AC generator is to ______.A. prevent the windings from becoming brittleB. prevent moisture from condensing in the windings during shutdownC. prevent acidic pitting of the slip ringsD. keep the lube oil warm for quick starting62. Sparking at the brushes of a running motor could be an indication of ______.A. normal operationB. a dirty commutatorC. increased brush capacityD. water vapor absorption63. Prior to starting, the purpose of turning over a main propulsion diesel engine with the cylinder test cocks open , is to ______.A. test the starting systemB. remove condensation from the cylindersC. check the compressionD. check for proper lube oil pressure64. During the watch keeping at sea, _______ should be logged or recorded in the engine log book.A. the running hours of the cooling water pumpB. chief engineer’s orderC. the main parameters of main and auxiliary equipmentsD. the position of the vessel65. During ship maneuvering, when the diesel is stopped, which of the following items is wrong?A. keep all systems running normallyB. main engines is available bottle outlet valveC. shut off the starting air bottle outlet valveD. pay attention to the changes of the system parameters66. Which of the listed conditions can be considered as the single greatest cause of accidents?A. SpeedB. Excessive knowledge or skillC. Human errorD. Excitement67. On a tank vessel, which of the following substances would be burning in a class ‘B’fire?A. OilB. WoodC. RagsD. Electrical wiring68. The most likely place for a fire to start through the process of spontaneous combustion is in _______.A. an electrical switchboardB. the pressure tanksC. the fuel oil tanksD. the oily rag bin69. Which of the fire extinguishers listed is to be weighed annually and sent ashore for recharging is the weight loss exceeds 10% of the weight of a full charge?A. FoamB. Soda acidC. Dry chemicalD. Carbon dioxide70. While on watch in the engine room, you hear a continuous sounding of the general alarm. Which of the following actions should you take first?A. Secure the burners then proceed to your assigned boat stationB. Start the fire pump and establish flow to the fire mainC. Open the guardian valve and standby to maneuverD. Open the master control valves on the fixed CO2 system71. If there were a fire in the bunker tanks, you should _________.A. close the ventB. pump out the tankC. activate the fixed CO2 systemD. cut off the heating coils72. To avoid excessive surge pressure when bunkering , you should______.A. bunker at a normal rateB. check for kind in hoseC. close at a normal rateD. shut valves before topping off73. ______, where minor repairs are carried out with a ship in service, often during a stay in port. This may be remote from a ship repair site.A. Voyage repairsB. Routine dockingC. Damage repairsD. Conversion74. When is the dock survey carried out?A. During annual repairB. Usually during dock repairC. Before sea trialD. After 5 years from last annual survey75. In the initial survey, ______ compiles the survey report and fills in certificate.A. surveyorB. chief engineerC. Before sea trialD. After 5 years from last annual survey76. If an incorrect entry were made in the Oil Record Book, you should _______-.A. erase the entry and rewrite itB. notify the ship‟s officer-in-chargeC. completely black it out and make the correct entry alongsideD. draw a single line through the wrong entry and initial it77. The International Oil Pollution Prevention Certificate is valid for a period of ______.A. one year from the date of issueB. f ive years from the date of issueC. three years from the date of issueD. four years from the date of issue78. Which one is NOT the …clear grounds‟ for a more detailed inspection?A. no operation procedures for the oil separatorsB. engine log book missingC. the master and the chief engineer are unable to communicate effectivelyD. absence of an up-date muster list79. The Port State Control officer may witness a fire drill carried out by the crew assigned to these duties on the _______.A. Navigation Log BookB. Engine Room Log BookC. Oil Record BookD. Muster List80 .STCW 78/95 Convention shall apply to seafarers ______ on board seagoing ships entitled to fly the flag of a Party.A. servedB. servingC. surveyedD. surveying81. The main purpose of port State control is not to ______.A .prevent an unsafe ship proceeding to seaB. prevent a ship threatening the marine environmentC. fine the shipsD. confirm a safe sailing82. The bridge should inform the engine room ______ before passing through congested or shallow waterway.A. 24 hoursB. 2 hoursC. 1 hourD. 15 minutes83. When the chief engineer is in the machinery spaces, the officer in charge of the engineering watch shall ______.A. continue to be responsible for machinery space operations despite the presence of the C/EB. hand over the responsibility to the chief engineer activelyC. be responsible for the watching together with the chief engineerD. assistant the chief engineer to control the machinery84. According to the international regulations concerning the prevention of pollution of sea areas from ships, the disposal into the sea of all plastics is ______.A. welcomeB. admitted in some special sea areasC. prohibitedD. acceptable85. The ship emergency plan item does not include ______usually.Ⅰ.lifesaving, fire fightingⅡ.first aid Ⅲ.abandon shipA. ⅡB. ⅢC. Ⅱ.ⅢD.Ⅰ86. Under ISM Code, the ship to which it applies has to carry ______.A. an International Ship Security CertificateB. an International Oil Pollution CertificateC. a Safety Management CertificateD. an International Ballast Water Management Certificate87. The objective of ISPS Code is ______.A. to protect the marine environmentB. to provide a method to avoid an accidentC. to protect the ship from collisionD. to keep terrorism action away from ships88. According to “MARITIME LABOUR CONVENTION,2006”, The maximum hours of work shall not exceed ______.A. 14 hours in any 24-hour periodB. 72 hours in any seven-day periodC. 10 hours in any 24-hour periodD. 88 hours in any seven-day period二、关联题（关联题题干下有4个小题，每个小题4个选项）第一组Port State Control (PSC) is the inspection of foreign ships in national ports foe the purpose of verifying that condition of the ship and its equipment comply with the requirements of international conventions and that the ship in manned and operated in compliance with applicable international laws.The primary responsibility for ensuring that a ship maintains a standard at least equivalent to that specified in international conventions rests with the flag State and if all flag States performed their duties satisfactorily there would be no need for port State control. Unfortunately this is not the case as evidenced by the many marine accidents around the world-hence the need for additional control.The authority for exercising PSC is the national law based on relevant conventions. It is therefore necessary for a port State to be Party to those conventions and to have promulgated the necessary legislation before exercising PSC. In accordance with the provisions of the applicable conventions, Parties may conduct inspections of foreign ships in ports through Port State Control Officers (PSCOs).89. The purpose of PSC is ______.①to check and inspect foreign ships②to verify the condition of a ship in compliance with requirements of international conventions③to make sure that the ship is manned and operated well④to detain shipsA. ①②B. ②③C. ①③D. ①②③④90. Who will be responsible for ensuring that a ship maintains a standard at least equivalent to that specified in international conventions?A. PSCOSB. Ship ownersC. Flag statesD. Port states91. Before exercising PSC, a port state should ______.A. become a contracting Party and promulgate regulations for implementing PSCB. inform ship ownersC. establish proceduresD. inform shipping companies92. PSC inspection is implemented by ______ through ______.A. flag states/PSCOsB. flag states/ship ownersC. port states/PSCOsD. port states/ship owners第二组Almost all failures in the fuel oil system, including the compression being too low, result in the crankshaft rotating more slowly if there is a failure at one or two cylinders fail, and the engine is not fully loaded, the crankshaft rev/min does not decrease, the reason being that the governor ensures that the remaining cylinders are loaded to a correspondingly greater extent. If the engine is already fully loaded, the cylinders that are working normally become overloaded causing a smoking exhaust and higher exhaust temperatures etc. The load must always be reduced until the failure has been located and rectified. The reasons for a cylinder suddenly working at reduced load, or failing completely, may be:1. a defective or blocked fuel injection valve2.the fuel oil pump piston seizing in the barrel. This failure can be ascertained by trying tomove the pump‟s toothed rack.. Defective fuel pumps must be changed.3.the compression being too low because of sticking, worn or broken piston rings4.leaking inlet or exhaust valves5.no clearance in the valve operation gearThe reasons for the crankshaft rotating more slowly, or stopping completely, can also be :1.the fuel oil filter being blocked. This failure is identified by decreasing oil pressure afterthe fuel oil filter.2.the fuel oil primary pump‟s bypass slide valve sticking in the open position3.leaking fuel oil pipes or joints4.water in the fuel oil5.the regulating mechanism being jammed6.the governor not functioning correctly7.the electrical shutdown valve (the monitoring system) being activated93. This passage is mainly about ______.A. the failure of reduced rpmB. the failure of the governorC. how to ensure the constant rotational speedD. the reasons for the fuel system to shut down94. If one or two cylinders fail in fuel oil system the crankshaft rev/min ______.①will invariably decrease ②does not decrease ③will decrease under certain circumstancesA. ①B. ②C. ③D. None of ①②③is true95. Which of the following is NOT mentioned as the reason for a cylinder suddenly working at reduced load?A. fuel valve failureB. failure of fuel pump discharge valvesC. too large gaps of piston ringsD. the fuel oil filter being blocked completely96. Which of the following is NOT mentioned as the reason for the crankshaft rotating more slowly or stopping?A. changing from heavy oil to light diesel oilB. connections leakingC. there being too much waterD. malfunction of the governor。
轮机系统英语试题及答案
轮机系统英语试题及答案一、选择题（每题2分，共20分）1. What is the primary function of a marine engine?A. To generate electricityB. To propel the shipC. To provide heatingD. To cool the engine2. The term "deadweight tonnage" refers to:A. The weight of the ship without cargoB. The maximum cargo capacity of the shipC. The weight of the ship fully loadedD. The total weight of the ship including cargo3. Which of the following is NOT a type of marine fuel?A. Heavy fuel oilB. Marine diesel oilC. Liquefied natural gasD. Gasoline4. What does the abbreviation "BOP" stand for in a ship's engine room?A. Ballast On PumpB. Blow Off PressureC. Black Oil PumpD. None of the above5. The main purpose of a ship's propeller is to:A. Generate electricityB. Provide stabilityC. Change the direction of the shipD. Convert rotational motion into thrust6. What is the role of a marine boiler?A. To produce steam for propulsionB. To cool the engineC. To provide fresh waterD. To heat the ship's interior7. The term "trim" in ship terminology refers to:A. The angle of the ship's bowB. The weight distribution along the ship's lengthC. The shape of the ship's hullD. The speed of the ship8. What does "GT" stand for in ship specifications?A. Gross TonnageB. Gross TransportC. General TransportD. Global Trade9. The main difference between a diesel engine and a steam turbine is:A. The type of fuel usedB. The method of converting thermal energy into mechanical energyC. The color of the engineD. The size of the engine10. What is the purpose of a ship's bilge system?A. To clean the ship's hullB. To remove water from the ship's interiorC. To provide fresh water for the crewD. To cool the engine答案：1. B2. B3. D4. D5. D6. A7. B8. A9. B10. B二、填空题（每空1分，共10分）1. The main components of a marine engine include the__________, the __________, and the __________.2. The term "draught" refers to the __________ of the ship below the waterline.3. A ship's hull is divided into several __________ to increase its structural integrity.4. The "load line marks" on a ship indicate the __________ of the ship when loaded with cargo.5. The "freeboard" is the distance between the waterline and the __________ of the ship.6. The "safety valve" in a marine boiler is designed to__________ pressure.7. The "main engine" is the primary source of __________ fora ship.8. The "stern tube" is the part of the ship where the__________ is located.9. "Machinery space" refers to the area where the ship's__________ are located.10. The "lifeboat" is a vessel designed to __________ people in case of an emergency.答案：1. engine, boiler, turbine2. depth3. compartments4. maximum permissible draft5. deck6. relieve excessive7. propulsion8. propeller9. engines10. rescue三、简答题（每题5分，共10分）1. Explain the difference between a single-screw ship and a twin-screw ship.2. Describe the function of a ship's anchor and how it is used.答案：1. A single-screw ship is propelled by a single propeller, which is driven by the main engine. It is simpler in designand usually less expensive to build and maintain. A twin-screw ship, on the other hand, has two propellers, each driven by an engine, which can be the same or different. This configuration provides better maneuverability, redundancy in case one engine fails, and often results in higher speeds.2. A ship's anchor is a device used to secure the ship when it is not in motion, particularly in harbors or at sea when the ship needs to be stationary. The anchor is dropped to the seabed, where it digs into the bottom, providing resistance to the ship's movement. The anchor is connected to the。
轮机英语历年试题卷一
HNKJ/C4/0701-16卷（一）科目：轮机英语适用对象：无限、近洋航区3000KW 及以上船舶二/三管轮一．单项选择题：1. The pump has a constant stroke and the amount of fuel deliveredis regulated by rotating ______ which has a specially arranged helical groove cut into it.A. the pump cylinderB. the pump camC. the pump plungerD. the pump roller2. Which of the two events listed occurs simultaneously in atwo-stroke/cycle diesel engine?A. Exhaust and scavenging.B. Scavenging and compression.C. Ignition and expansion.D. Exhaust and compression.3. Precision engine bearing inserts are manufactured with a smallportion of the bearing ends extending beyond the bearing housing or caps. The installation process of these bearings requires sufficient ______.A. overlapB. crushC. lap or leadD. protrusion4. The ability of a fuel particle to travel into the combustion chamberbefore burning is called _____.A. penetrationB. permanenceC. turbulenceD. atomization5. As for turbine oil, contacting with water in the form of steam willbe inevitable so good ______ properties will be essential. A. defrosting B. de-oiling C. demulsifying D. dehumidifying6. An additive used to improve the ability of a lube oil to reducefriction is known as a/an ______.A. suppressant additiveB. dispersant additiveC. extreme pressure additiveD. viscosity improver additive7. Any carbon built up on surfaces must be washed away by ______additives and held in suspension by a ______additive.A. dispersant /detergentB. detergent/dispersantC. dispersant /dispersantD. detergent/detergent8. Vee-type engines have the connecting rods from two cylindersconnected to each ______of the crankshaft.A. throwB. webC. main bearingD. deflection第 2 页共9 页9. A supercharged engine differs from an un-supercharged engine______it operates at an increased pressure.A. in whichB. on whichC. at whichD. in that10.The ___ engine is used for alternators and sometimes for mainpropulsion with a gearbox to provide a propeller of between 90 to 120 rpm..A. four-strokeB. two-strokeC. slow speedD. reversible11.The most common contaminate of governor hydraulic fluid is______.A. moistureB. dirtC. acidD. air12.A governor automatically controls engine speed by regulating the______.A. fuel supplyB. firing orderC. engine loadD. oil level13.A vane pump belongs to ______according to its working principle.A. reciprocating pumpB. positive displacement pumpC.centrifugal pump D. centripetal pump14.The ______pump is usually used as the lubricating oil pump.A. turbineB. screwC. vaneejectorD. centrifugal 15.If you were operating a centrifugal water service pump with wornwearing rings, the ______.A. pump would be very noisyB. pump would vibrate excessivelyC. pump would develop insufficient flowD. stuffing box would leak excessively16.A ______in the air delivery line near to each compressor isessential.A. butterfly valveB. globe valveC. gate valveD. non-return valve17.______the moveable plate and floating ring inside the pump isvery difficult.A. Having adjustedB. Being adjustedC. To adjustD. Adjusted18.In its simplest form the pressure reducing valve is opened orclosed by ______which is balanced by the downstream pressure acting on a diaphragm.A. adjusting a nutB. a pre-tensioned springC. any springD. upstream pressure19.Before an auxiliary boiler is shutdown for an extended period oftime, the water in the boiler should have a pH value of ______.A. 10B. 7C. 4D. 1HNKJ/C4/0701-1620. The exhaust boilers are used to recover some of ______carried inthe exhaust gas from the main engine.A. waterB. oilC. heatD. steam21. Fins are installed on the generating tube surfaces in waste heatboilers to ______.A. prevent soot fires in the exhaust systemB. prevent exhaust gas erosion of the tubesC. increase the velocity of exhaust gas flowD. increase the rate of heat transfer22. The ______is not a component of an oil separator.A. sliding bowl bottomB. gravity discC. separating discD. scum valve23. The ______of the gravity disc is too big. It cause oil to flowthrough the water outlet. We changed the disc and no oil is found in the water outlet.A. gravityB. diameterC. bowlD. cylinder24. The ______is fitted on an oily water separator.A. sliding bowl bottomB. gravity discC. bowlD. liquid level detector25. The oil sludge is burnt in the ______onboard. I‟ll show you the ashes. A. boiler B. main engine C. auxiliary engine D. incinerator26. Which of the listed burning materials would be described as aclass … B ‟ fire?A. AcetyleneB. Lube oilC. GreaseD. All of the above27. ______unit is mounted so as to raise and lower the cable from thespurling pipe, which is at the top and center of the chain or cable locker.A. The cable lifterB. The hoisting motorC. The topping wireD. The life-raft28. The ______belongs to the anchor handling equipment.A. chain lifterB. winch barrelC. slewing rimD. warping drum29. If a hydraulic pump is overheating, the cause may be ______.A. excessive internal leakage in the pumpB. low discharge pressure and fluid flowC. excessive fluid level in the hydraulic reservoirD. operation of the pump at 100% efficiency30. Less scale formation occurs in a flash evaporator than in asubmerged tube evaporator because ______.A. the distillate produced has greater purityB. no boiling occurs on heat transfer surfacesC. evaporation occurs at a higher rateD. the incoming feed is at a higher temperature第 4 页共9 页31.Which of the following descriptions best identifies the operatingprincipal of a flash-type evaporator?A. Sea water is heated to boiling temperature while under avacuum.B. Sea water is passed over heated plates in a thin film.C. Heated sea water is injected into a vacuum chamber.D. Sea water is forced through a heated eductor.32.The ______stage air compressors are widely used on board theship.A. singleB. IIC. IIID. multiple33.Sludge may form in the crankcase of an air conditioningcompressor as a result of ______.A. bubbling refrigerantB. overheating and oxidationC. lowered operating temperaturesD. reducing the cloud or flash point34.A feeler or thermal bulb is used for the expansion valve to ______.A. detect the temperatureB. detect the pressureC. heat the refrigerantD. accelerate the refrigerant35.When adding oil to a refrigeration system, precautions must betaken to ensure that ______.A. the compressor suction pressure is not too highB. all air is purged from the pump and charging fittingsC. the high pressure cutout switch is held open to preventaccidental startingD. the condenser is completely shutdown first36.“Flooding back” is a condition where the liquid refrigerant ______.A. vaporizes in the condenserB. reaches the compressor through the suction lineC. flashes in the liquid lineD. condenses in the receiver37.Zinc rods are installed on the ______in the refrigeration system.A. liquid strainerB. liquid receiverC. saltwater condenserD. evaporator38.The division of kilowatt load between two paralleled alternators isdetermined by the ______.A. amount of field excitation of the leading machineB. load-speed characteristics of the governorsC. amount of field excitation to the lagging machineD. type of alternator39.A constant output voltage from an AC generator is maintained bythe ______.A. prime mover governorB. exciter generatorC. voltage regulatorD. reverse power relay40.Universal motors will operate on AC or DC current, and aregenerally found in ______.A. portable toolsB. large pump motorsC. turbo electric main motorsD. forced draft fansHNKJ/C4/0701-1641. The diesel engine consumes considerably less fuel than the steamengine for equal output, ______enables a motor-ship to load more cargo. A. why B. which C. in which D. on which42. Power transformers are rated in ______. A. kilowatts B. ampere-turns C. kilowatt-volts D. kilovolt-amperes 43. The operating medium for control systems may be ______. A. compressed air B. hydraulic oilC. electricityD. all of the above44. The jacket water temperature in a diesel engine closed freshwater cooling system is normally controlled by ______. A. regulating the level of corrosion inhibitor in the primarycooling system B. the level of the freshwater expansion tank C. varying the engine load to meet temperature requirements D. the operation of the thermostatic valve 45. To correct a hunting problem in a main propulsion diesel engine hydraulic governor, you should ______. A. increase the governor oil pressureB. adjust the speed droop settingC. adjust the speeder spring travelD. adjust the compensating needle valve 46. Electrical leads and insulation on a motor should be painted with______. A. heat-resisting acrylic B. heat-resisting aluminum C. insulating varnish D. insulating white lead47. An ohmmeter can be used to measure ______. A. current flow in a circuitB. voltage between two points in a circuitC. resistanceD. power48.Engine protection by means of an alarm or shutdown control can be obtained with devices that are sensitive to ______. A. temperature B. pressure C. engine speed D. all of the above49. The first requirement for logical trouble shooting of any system is the ability to ______. A. collect all available data on a casualty B. recognize normal operation C. identify the probable cause of a symptom D. isolate the faulty component50. In order to inspect both piston and cylinder wall thoroughly, the cylinder cover should be taken off and the piston should be ______. A. craned out B. rolled out C. lifted out D. turned out第 6 页共9 页51.In a diesel engine, an extremely leaking exhaust valve can cause______.A. misfiringB. pre-ignitionC. interrupted scavengingD. reduced scavenging52.Sacrificial zinc anodes are used on the saltwater side of dieselengine heat exchangers to ______.A. reduce electrolytic action on heat exchanger metalsB. keep heat transfer surfaces shiny and cleanC. prevent rapid accumulation of marine growthD. provide a protective coating on heat exchanger surfaces53.Poor combustion in a diesel engine can be caused by ______.A. high compression pressureB. low intake air temperatureC. low exhaust pressureD. high scavenge air temperature54.Any increase in the exhaust back pressure of a four-stroke/cyclediesel engine will ______.A. reduce engine horsepower outputB. aid in silencing the exhaust noiseC. increase the mean effective pressureD. contribute to effective cylinder scavenging55.If the jacket water temperature of an operating diesel enginesuddenly rises above normal, the cause can be attributed to______.A. an overfilled expansion tankB. excess chromate treatment of the jacket waterC. a clogged raw water sea suctionD. cavitation erosion of the heat exchanger tubes56.The bearing cap and shell are replaced and tightened up until______.A. the “ nip “ is zeroB.the “ nap “ is zeroC.the “ gap “ is correctD.the “ clearance “ is correct57.______, the engine must be stopped immediately.A. Should knocking occurB. If knocking occurC. Should if knocking occursD. If occur knocking58.Each journal and pin should be examined for ______and grooving.A. bridgesB. recessesC. rearsD. ridging59.Which of the motors for the devices listed below is fitted with aninstantaneous overload relay?A. FanB. PumpC. WinchD. Machine tool60.A centrifugal pump can‟t supply water after starting. You shouldcheck the ______.A. discharge valveB. power supplyC. packing glandD. bearing lubrication61.A built-up exhaust valve is one in which ______.A. the stem and heads are made of different materialB. low-alloy steel is used throughoutC. a replaceable valve disk is welded to the headD. the self-centering action comes from motion of the valve stemin the guideHNKJ/C4/0701-1662. It is well known that the whole power distribution of the ship‟selectrical services mainly depend on the ______. A. sub-boards B. main switchboardsC. emergency switchboardsD. distribution boards63. Oil mist detectors are usually used on board to detect oil mist density within ______. A. the engine crankcase B. the engine scavenge boxesC. drain tanksD. fuel tanks64. The ______is used to measure power. A. ammeter B. voltmeterC. wattmeterD. frequency meter65. Keep compartment ______as the gas given off can be dangerous. A. well ventilated B. well clean C. in good order D. more room66. The value of GM still remains one meter, meanwhile we can pump the ballast water to ______the ship on the even keel. A. make B. put C. keep D. get 67. We have stayed at Shanghai port for a long time. The fouling on the ship‟s hull greatly increases her ______. A. power B. speed C. resistance D. thrust force 68. The conventions under which the port state control inspection is carried out include all the following except ______. A. SOLAS 74 B. MARPOL 73/78C. STCW 78/95D. ISM Code 69. The auxiliary steering gear must be capable of being brought speedily into operation and be able to put the rudder over from 15 degrees on one side to 15 degrees on the other side in no morethan ______with the ship at its deepest service draught and run ahead at the greater of one half of the maximum service speed or ______. A. 28 seconds/7 knots B. 28 seconds/14 knots C. 60 seconds/7 knots D. 60 seconds/14 knots70. Tell your men ______the rules and procedures of working when dismantling the equipment. A. not to go against B. don‟t go againstC. not go to againstD. to not go against71. Which of the listed classes of fire is considered as one involving electrical equipment?A. Class … A ‟B. Class … B ‟C. Class … C ‟D. Class … D ‟ 72. After a fire has been extinguished in a closed space, personnelmay safely enter the space when ______. A. smoke density has been decreased sufficiently to see the bulkhead opposite the compartment's entrance B. a lifeline and explosion proof flash light are usedC. all smoke and toxic fumes are removed and an adequateoxygen supply is present第8 页共9 页D. overhaul has been completed to remove any possible source ofre-ignition73.Under the provisions of applicable international conventions, theofficers to conduct port state control inspection must be dulyauthorized by ______.A. the companyB. the Government of the countryC. the organization recognized by the AdministrationD. the IMO74.During inspection of oil and oily mixtures from machinery spaces,which of the following factors should be taken into account by the PSCO?A. The quantity of oil residues generated.B. The capacity of sludge and bilge water holding tank.C. The capacity of the oily water separator.D. All of the above.二、关联题（每组关联题题干下有4个小题，每小题4个选项）第一组：The electrical remote control system is commonly used in modern steering installations since it uses a small control unit as transmitter on the bridge and is simple and reliable in operation.The control box assembly is mounted on the steering gear.Movement of the bridge transmitter results in electrical imbalance and current flow to the motor in the control box. The motor drives, through a flexible coupling, a screw shaft, causing it to turn. Ascrew block on the shaft is moved and in turn moves the floatinglever to which a control rod is attached. The control rod operates the slipper ring or swash plate of the variable delivery pump. Acut-off lever connected to the moving tiller will bring the floating lever pivot and the lever into line at right angles to the screw shaft axis. At this point the rudder angle will match the bridge leverangle and the pumping action will stop. For local manual control, the electrical control is switched off and a small hand-wheel isconnected to the screw shaft. Rotation of the hand-wheel willmove the floating lever and bring about rudder movement asdesired.75.This passage is mainly on ______.A. the electrical remote control of main enginesB. the electrical control equipment of steering gearsC. the bridge remote control of main enginesD. the control box assembly in steering gear compartment76.The advantage of the control equipment is ______.A. that the transmitter is on the bridgeB. that local manual control can be achieved.C. that remote control cab be achieved.D. simple in construction and reliable in operation.77.The function of the cut-off lever is ______.A. to provide electrical signalB. to provide feed-backC. to provide local manual controlD. to provide right rudder angle78.Another name for the “swash plate” in the variable delivery pumpis ______.A. tiltable discB. gravity discC. distributing discD. catch plateHNKJ/C4/0701-16。
轮机英语考试题B
轮机英语考试题B班级＿＿＿＿＿姓名＿＿＿＿＿成绩＿＿＿＿一、英译中（共80分）In brief, if oil cargo residue is to be discharged from a tanker it must: not be in a Special Area; be farther than 50 nautical miles from land; be on passage..Additionally; the instantaneous rate of discharge must not be more than 30 litre per mile; the total amount must be not more than 1/30,000 of the particular cargo,and the oil discharge monitoring and control system and slop tank arrangement required must be in operation.(2)A coil of wire rotating in a magnetic field produces a current. The currentcan be brought out to two slip-rings which are insulated from the shaft. Carbon brushes rest on these rings as they rotate and collect the current for use in an external circuit. Current colleted in this way will be alternating, that is, changing in direction and rising and falling in value. To increase the current produced, additional sets of poles may be introduced.(3)There are three versions of this type of thermometer which can be used for remote temperature indication and/or operation of alarm or control circuits. The thermometer consists of a bourdon tube connected to a metal bulb by a capillary tube. The whole internal volume of the bulb and tubes is filled with liquid, or vapour or gas. The mercury filled thermometer is one of the liquid filled type thermometers. In operation any variation in the temperature being measured varies the volume of the mercury and it is this volume change which operates the bourdon tube , pressure changes being incidental . The movement of the free end of the bourdon tube is transmitted through linkages to a pointer moving over a scale.(4)During the watch a log or record will be taken of the various parameters of main and auxiliary equipment . Fuel consumption figures are used to determine the efficiency of operation, in addition to providing a check on the available bunker quantities. Lubricating oil tank levels to some extent indicates engine oil consumption . If the sump level to rise this would indicate water leakage into the oil and an investigation into the cause must made . The engine exhaust temperature reading should all be about the same to indicate an equal power production from each cylinder . The various temperature and pressure values for the cooling water and lubricating oil should be at , or near to , the manufacturer’s designed values for the particular speed or fuel lever settings.二、中译英(共20分)（1）第三缸主轴承的间隙已检查并测量。
轮机英语8套（6）
轮机英语8套（6）1、T eam members share accurate understanding of current and predicted engine-room and associated systems state, and of .A. external environmentB.external resourcesC.internal environmentD.internal resources2、Which of the equipment listed is most effective in processing bilge slops for overboard discharge? (172917:第2 章船舶辅助机械:748) 查看备注查看答案A. A 100PPM oily water separator. B. the second engineerC. the third engineerD. the fourth engineer6、Under ISPS Code, the ship to which it applies has to carry _. (174865:第5 章国际公约、规则:235) 查看备注查看答案A. an International Ship Security CertificateB. an International O i l Pollution Prevention CertificateC. a Safety Management CertificateD. an International Ballast Water Management Certificate7、In order to protect the aerobic bacteria from death, the sewage plant should workB. Assembling the lube oil purifier as a separator and aligning it to the bilge overboard. .C. A 15PPM oily water separatorD. A magnetic duplex strainer3、During the PSC inspection, under the provisions of SOLAS74, which one may not be regarded as clear grounds for ships detainment? (174599:第4 章船舶轮机管理业务:621) 查看备注查看答案A. Excess amount of oily-water mixtures in bilgesB. Insulation of piping including exhaust pipes in engine room contaminated by oilC. Improper operation of bilge pumping arrangementsD. Paint peeling off the uptake4、A gearbox is used in a ship driven by a medium-speed diesel engineA.to govern the engine speedB.to increase the engine speedC.to reduce the engine speedD.to fix the propeller shaft5、Usually _ handles the majority of the correspondence and negotiation needed during transactions of stores and spare parts in the engine department. (174448:第4 章船舶轮机管理业务:470) 查看备注查看答案A. the chief engineer A.at 3-month intervalsB.at 14-day intervalsC.at 7-day intervalsD.continuously8、After charging solid waste, close the dump chute, and ignite it with the _.A.auxiliary and waste oil burnersB.auxiliary burner or the waste oil burnerC.auxiliary burnerD.waste oil burner9、The separating effect of oil separator is not very good, the reason may be _ 。
轮机英语试题及答案
轮机英语试题及答案一、选择题（每题1分，共10分）1. What is the term for the main engine of a ship?A. PropellerB. RudderC. EngineD. Boiler2. Which of the following is not a type of marine fuel?A. DieselB. BunkerC. GasolineD. Heavy Fuel Oil3. What does the abbreviation "SOLAS" stand for?A. Society of Legal and Administrative StudiesB. Safety of Life at SeaC. Special Operations and Logistics AssistanceD. Ship Operating and Lifesaving Systems4. What is the purpose of a ship's anchor?A. To propel the shipB. To steer the shipC. To secure the ship when not in motionD. To lift heavy objects5. The term "deadweight tonnage" refers to:A. The weight of the ship's hullB. The maximum weight a ship can carryC. The weight of the ship's cargoD. The weight of the ship's fuel6. What is the function of a ship's bilge?A. To store fresh waterB. To collect and pump out water from the hullC. To provide buoyancyD. To store oil7. Which of the following is a navigational instrument?A. CompassB. Engine roomC. LifeboatD. Anchor8. What is the term for the lowest part of a ship's hull?A. DeckB. HullC. KeelD. Stern9. What does "GM" stand for in ship stability calculations?A. Gross MassB. Gross TonnageC. Gantry MastD. Metacentric Height10. The International Maritime Organization is abbreviated as:A. IMOB. ITUC. ISOD. ILO二、填空题（每题1分，共5分）11. The main components of a ship's propulsion system include the ______, propulsion shaft, and propeller.12. The ______ is the person responsible for the operation and maintenance of the ship's engine.13. The term "freeboard" refers to the distance between the waterline and the ______ of the ship.14. A ship's ______ is the area where the crew lives and works.15. The ______ is a document that provides information about the ship's safety equipment and procedures.三、简答题（每题5分，共20分）16. Explain the difference between a cargo ship and a tanker.17. Describe the role of the International Maritime Organization (IMO) in maritime safety.18. What are the main factors considered when designing a ship's hull?19. Discuss the importance of regular maintenance of a ship's engine.四、论述题（每题15分，共30分）20. Discuss the environmental impact of maritime transportation and how it can be mitigated.21. Analyze the challenges faced by a ship's crew during a long voyage and how they can be addressed.五、翻译题（每题5分，共10分）22. Translate the following sentence into English: “船舶的稳性是指船舶在受到外力作用时，能够保持平衡的能力。
《轮机英语》试题（二三管轮）含答案
《轮机英语》试题（二三管轮）含答案《轮机英语》考试复习题(二、三管轮)第一章船舶动力装置1.“Before disconnecting the oil pipe, would you flush the oil retained in the pipe?”asked the oil barge owner.A． by using of fresh waterB．with compressed air √C． by using of sea waterD． with chemical compound2.“Stand by an engine” means _____.A．“prepare to stop the engine”B．“assemble an engine on its bedplate”C．“make an engine ready for starting”√D．“dismantle an engine”3. A _____ is the foundation of the engine, without the support of which the shaft alignmentin particular, and engine structure as a whole, would inevitably be lost.A． FrameB．Bedplate √C． CylinderD． Liner4._____ are commonly used in mechanical-hydraulic governor to sense engine speeds.A． BulbsB． BulksC．Flyweights √D． Flywheels5._____ are generally formed in the frame of the both in-line and Vee engines to givemaintenance access to the crankshaft main and connecting rod large end bearing.A．Doors √B． Aspirate gauzerC． CouplingD． Blind6._____ device is provided to prevent starting air from being admitted to the cylinderbefore the reversing is completed.A．An automatic √B． A transmissionC． A self-regulatingD． An interlocking7._____ fuel oils _____ lubricating oils require treatment before passing to the engine.A．Both/and √B． Neither/norD． Both/or8._____ is sometimes used for piston cooling since leaks into the crankcase would not causeproblems.A． Diesel oilB． Hydraulic oilC．Lube oil √D． Mineral oil9._____ is the removal of exhaust gases by blowing in fresh air.A． Gas exchangeB． ChargingC．Scavenging √D． Supercharging10._____ is used for cylinder and cylinder head, the salt water is used for cooling thelubricating oil, the fresh water in the coolers and the charging air in the air cooler.A． The fuel oilB． The lube oilC． The sea waterD．The fresh water √11._____ may be the first possible cause which makes the engine to lose power or slow downwhen it is running.A．Hot bearing √B． Starting valvesC． Unequal distribution of loadD． Excessive crankshaft clearance12._____ of an engine crankshaft can be detected by measuring deflections of crank websfor each unit of the engine.A．Misalignment √B． LengthC． StrengthD． Stresses13._____ of the A-frames there is a strong cast iron frame called the scavenging air box.A．At the top √B． At the bottomC． In the topD． In the bottom14._____ pistons have low inertia and high coefficient of thermal expansion.A． Cast ironB． Cast steelD．Aluminum √15._____ should not undertake any task which will interfere with the supervision dutiesrelating to the main machinery and associated equipment.A．The watch keeping personnel √B． The chief engineerC． The person on a bunker bargeD． Any of the above16._____ the cylinder will contain a great weight of air and will be capable of burninga great quantity of fuel.A．At the beginning of the compression stroke √B． At the beginning of the suction strokeC． At the end of the working strokeD． At the end of the exhaust stroke17._____ the supercharge pressure is, _____ power an engine develops.A．The higher/the more √B． Higher/moreC． Higher/littleD． The higher/the less18._____ is not properly set thus causing either advanced or retarded firing.A． A pistonB．A fuel injection pump √C． A feed water pumpD． A lube oil pump19._____ rods are not in proper condition so that too much fuel is supplied to thecorresponding cylinder.A． PistonB． SoundingC．Regulating √D． Connecting20._____ shows 1.2 meter and the specific gravity of the oil is 0.96According to the measuringscale, that makes 150 tons.A． The piston rodB． The push rodC．The sounding rod √D． The connecting rod21._____ allows for expansion and water make up in the water cooling system.A． A top tankB．A head tank √D． A drain tank22._____ at the end of the distribution pipe ensures that adequate pressure is maintainedby the pump.A． A relief valveB．An alarm √C． A pressure gaugeD． A non-maim valve23._____ is used for washing and drinking.A． The ballast systemB． The salt water systemC． The bilge systemD．The domestic system √24._____ provide the water to the pistons.A． Pneumatic pipesB． Hydraulic pipesC．Telescopic pipes √D． Operating gas pipes25._____ are fitted in the exhaust system and facilitate charge removal and scavenging ineach cylinder.A．Diffusers √B． CompressorsC． Steam boilersD． Soot blowers26._____ are formed by abrasive particles entering the bearing and scoring the shaft.A．Grooves √B． RecessesC． RidgesD． Nips27._____ are mounted on and bolted to the bed-plate cross girders.A． The crankshaftB． The crankcaseC． The guide-waysD．The frames √28._____ is a precaution which contributes to avoiding trouble under normal operatingconditions.A．Constant inspection √B． Keeping constant loadC． Remaining constant temperatureD． varying speed29._____ is a source of power by which the diesel engine may operate.A． Water energyB． Electrical energyC． Chemical energyD．Heat energy √30._____ is arranged for cleaning the lubricating oil in the system and clean oil can beprovided from a storage tank.A． A filterB．A centrifuge √C． A distillerD． A generator31._____ is fully floating in both connecting rod small end and the piston skirt.A． The piston rodB． The cross head pinC．The gudgeon pin √D． The crank-pin32._____ is made of a boss with separated blades mounted into it.A．A variable pitch propeller √B． A variable pitch nutC． A fixed pitch parallelD． A fixed pitch screw33._____ is usually driven by the engine camshaft andsupplies pilot air to the cylinderair start valve.A． An air receiverB． An operating valveC． An automatic valveD．An air distributor √34._____ neutralizes the acid conditions and_____ cleanses the rings and grooves.A． The detergency/the alkalinityB．The alkalinity/the detergency √C． The inhabitant/the waterD． The additives/the distilled water35._____ or air venting arrangement is fitted to the fuel supply passage.A． An air pumpB． A compressorC． A fuel pumpD．A priming √36._____ providing lubricating films, oil used in marine diesel engines have to remove heatfrom oil cooled piston.A． Except forB． BesideC． ExceptD． In additi on to √37._____ the engines, the diesel engine is_____ used engine on board.A． Between/more commonlyB．Among/the most commonly √C． Between/not more commonlyD． Among/not the most commonly38._____ water is more expensive than fresh waterIt has high specific heat and low viscosity.A．Distilled √B． DistillingC． BoilingD． Boiled39._____ for the camshaft gear train is taken from a spur gear which for a six cylinderengine is at the coupling end.A． The driven gearB．The drive √C． The greaseD． The lubricating oil40._____ in what position the engine stops there will always be at least one of the cylinderswith its starting air valve open to admit compressed air to start the engine.A． BecauseB． Owing toC． ForD．No matter √41._____ is secured by means of side-chock bolts and end-chock bolts.A．The bedplate √B． The columnC． The main bearingD． The double bottom42._____ usually helps to induce air movement to assist combustion.A． Cylinder coverB． Main bearingC． The exhaust valveD． The p iston movement √43._____ may have two emergency source of power, thus requiring two emergency switchboards.A．Large passenger vessels √B． General cargo shipsC． Container shipsD． Oil tankers44._____ supplies pilot air to control the cylinder air start valves.A． An air compressorB． An indicator cockC．An air distributor √D． A safety valve45._____ clearances in the main or crank pin bearings will sometimes be indicated by lossof pressure in the lubricating system before any bearing knock is heard.A． T oo largerB． Too smallerC． ExcessD．Excessive √46.A cast steel strong back is fitted in way of the combustion space to help absorb _____.A． flame temperatureB． fuel oilC． air movementD．gas forces √47.A charge of fresh air is drawn into the engine cylinder and then _____ by the movingpiston_____ very high pressure.A． pressed/toB． pressurized/withC． pushed/inD．compressed/to √48.A common trouble with the fuel pump plunger or fuel valve spindle is _____.A． water leakageB． steam leakageC．oil leakage √D． air leakage49.A common trouble with the fuel pump plungers or fuel valve spindle is _____.A． broken downB． stuckC．oil leakage √D． carbonized50.A diesel engine is similar to a gasoline engine except that the former has no _____.A． cross-headB． cylinderC． connecting rodD．spark plug √51.A diesel engines crankcase oil level is found to be too highYou should suspect that _____.A． the engine was over filledB． there might be a fuel leakC． there might be a water leakD． all of the above √52.A distance piece, known as a _____ may be interposed between the rod and the bearinghousing.A． bearing shellB． bearing linerC．compression plate √D． lead wire53.A distance piece, with ground faces, known as a compression plate, may be interposedbetween the rod and the beating housing, its thickness being chosen to ensure the correct _____.A． compression pressureB． compression testC．compression ratio √D． compression clearance54.A distance piece, with ground faces, may be interposed between the rod and the bearinghousing, its thickness being chosen to ensure the correct _____.A． expansion ratioB． pressure ratioC．compression ratio √D． clearance ratio55.A governor automatically controls engine speed by regulating _____.A． fuel s upply √B． firing orderC． engine loadD． oil level56.A gudgeon pin in a trunk piston may be free to float and rotate, with _____ to limitaxial movement.A． split pinsB． crankpinsC． dipsticksD．circlips √57.A heater in the circuit facilitates warning of the engine prior to ____ by circulatinghot water.A．starting √B． stoppingC． to startD． to stop58.A high temperature alarm or _____ which will melt is used to guard against the explosionof compressor air pipelines.A． a flame trapB． a relief valveC．a fusible plug √D． a bursting cap59.A hot air start pipe indicates that there is _____.A． inefficient coolingB．a leaking air start valve √C． a clogged drain valveD． a leaking air bottle60.A level gauge for a tank is to _____.A． give the pressureB．give the contents √C． give the shape of the tankD． give the accuracy level61.A lubricant often has to perform many duties in any situation, in addition to itsfundamental job of_____.A． resisting oxidizationB．reducing friction √C． promoting moving speedD． developing inertia62.A main bearing consists of two shells which are secured by means of studs and _____.A． tie rodsB． through boltsC． lead wiresD．bearing caps √63.A number of cylinder liners are enclosed in one cast iron casing to form a _____.A． cylinder coverB．cylinder block √C． cylinder frameD． bed-plate64.A reduction in load on a diesel engine results in _____ of speed of the crankshaft.A． a reductionB．an increase √C． an outingD． a downwards65.A separate piston cooling system is used _____ any contamination from piston coolingglands to the piston cooling system only.A． to helpB．to limit √C． to protectD． to remove66.A separate piston cooling system is used to limit any contamination _____ piston coolingglands_____ the piston cooling system only.A． between, toB． either, orC．from, to √D． neither, nor67.A single piece_____ fitted with bronze rings guides the piston in the cylinder liner.A．piston skirt √B． piston crownC． guide wayD． cross-head68.A variable pitch propeller is made _____ a boss with separate blades mounted into it.A． ofB．up of √C． fromD． out69.A: Please tell me the specifications and quantityB: _____.A． Pump diesel oil firstB．300 tons of 180 cst fuel oil √C． The figure is all rightD．OK, I’ll sign it70.About half an hour before the engine is required, cooling water at _____ must be circulated.A． more than the working temperatureB． less than the working temperatureC．the working temperature √D． the same as the surrounding temperature71.According to the way the energy of the exhaust gases is utilized, pressure-charging canbe divided into two main systems, namely, the constant-pressure system and _____.A． the pulse-phase systemB． the pulse Doppler systemC．the pulse system √D． the pulse interval72.Acid solution in the system can be tested from time to time by putting some on to a pieceof lime.A．strength √B． denseC． percentageD． velocity73.Additives _____ protective layers on metal surfaces guarding them against corrosion.A． damageB．form √C． dissolveD． contaminate74.Adjust _____ by means of lead wire.A．the clearance of the main bearing √B． the diameter of main bearingC． the gap of main beatingD． the tolerance of main bearing75.Administrations should bear in mind the significance of_____ in maintaining safety oflife and property at sea and in preventing marine pollution.A． advanced nautical equipmentB． advanced performance main enginesC． emergency equipmentD． communicati on and language skills √76.A-frames and cylinder block is held together by _____ to form a rigid structure.A． connecting rodsB． piston rodsC．tie rods √D． jack-bolts77.A-frames are mounted on the bed plate and support _____ and cylinder block.A． the main bearingB． the cylinder coverC．the entablature √D． the sump78.After "F.W.E." is given, the air system is shut down, the _____ gear put in, all drainsand indicator cocks opened, and the cooling water kept running.A． steeringB． timingC．turning √D． running79.After ensuring that the _____ is correct the bearing clearance should be checked.A． napB． gapC．nip √D． deflection80.After fitting back in place the gear wheels, dont forget _____ them.A．to grease √B． greasingC． oilingD． lubricating81.After passing through the turbine the exhaust gas is conducted out into the _____.A． intercoolerB． compressorC． cylinderD．open air √82.After the engine is warned, we should_____ the turning gear before starting up the engine.A． take inB． put inC．take out √D． put up83.After the order “_____” is given, the air system is shut down, the turning gear putin.A．Finished with Engine √B． Stop the EngineC． Stand-by EngineD． Slow-down Engine84.Air cocks, usually positioned at the _____ in a circulating system, is used to get ridof the air in the system.A． bending jointB． expansion tankC． weldD．the highest point √85.All the rings are slightly rounded on their external top and bottom edges to keep theoil film on the cylinder liner during _____ for new piston rings.A． the running-in period √B． the running processC． gas exchange processD． the boiler firing86.All three systems have the ports _____ to swirl the incoming air and direct it in theappropriate path.A． angledB． roundedC． being angledD．being rounded √87.Although the crankshafts of medium diesel engines appear to be robust, they rely on thesupport of _____ to develop their full strength.A． the piston rodsB． the crank throwsC． the thrust bearingsD． the main bear ings √88.Aluminum pistons have _____ coefficient of thermal expansion compared with those of castiron.A．higher √B． lowerC． the sameD． none of the above89.Among the rings of a piston the _____ one is subjected to the greatest load and temperature.A． bottomB． middleC．top √D． none of the above90.An aluminum piston has lower inertia and higher coefficient of _____ compared to thatof cast iron.A． viscosityB． twisting momentsC． inertiaD．thermal expansion √91.An electrically driven automatically operating auxiliary blower is provided for slowspeed and _____ of a low speed diesel engine.A．manoeuvring operations √B． bad combustionC． coolingD． mooring trial92.An increase in load on a diesel engine results in _____ of speed of the crankshaft.A．a reduction √B． an increaseC． an outingD． a downwards93.An interlock in the remote operating valve line stops the valve _____ when the engineturning gear is engaged.A． to openB．opening √C． openD． opened94.An overspeed safety device is usually fitted to a generator engine for _____ in the eventof overspeed.A．cutting power off the engine √B． increasing the fuel pump settingC． braking the crankshaftD． stabilizing the ship speed95.As a heat engine, _____ energy is the source of power by which the diesel engine canbe operated.A． electricB．heat √C． mechanicalD． exhaust96.As for a diesel engine, lack of combustion air may be due to _____.A．fouling turbine √B． fuel pump faultsC． lubrication failureD． excessive cooling97.As the plunger moves up, the ports are closed and the fuel _____ and delivered to theinjector nozzle at very high pressure.A． being compressedB． to be pumped upC．is pressurized √D． are built up98.At least _____ cylinders in four-stroke engine will be configured to ensure that theengine can be started with the crankshaft at whatever position.A．6 √B． 2C． 12D． 899.At the top of the A-frames there is a strong cast iron frame called _____.A． cylinder linerB． cylinder coverC． the gear boxD． the sc avenging box √100.Be sure to make the engine turn by _____ before starting and after stopping.A． steering gearB．turning gear √C． steering wheelD． turning cycle101.Bearing knocks are likely to occur from _____.A． less clearanceB． dirty lube oilC． overloadD．bearing wear √102.Because the castings of smaller engines are not so big and heavy, _____ and cylinder block may be made in one piece.A．the column √B． the jacketC． cylinder coverD． cylinder liner103.Bedplates are the _____ of the engine, without the support of which the shaft alignment in particular, and engine structure as a whole, would inevitably be lost.A． hullB． projectionC． graphitizationD．foundation √104.Before "stand-by" is rung on the engine telegraph, it is usual to give the main engine _____ ahead and astern.A． a brief trial with turning gearB．a brief trial on power √C． a long trial by steering gearD． one minutes trial with windlass105.Before a marine diesel engine is started the cylinders and pistons must be _____.A． cooled to appropriate temperatureB．warmed up gradually to appropriate temperature √C． opened up and renewedD． ground and polished106.Before being used the fuel service tank should be drained of _____.A． soda solutionB． mechanical impuritiesC． ballastD．water and residuals √107.Before pumping up the crankcase oil, _____ should be worked by hand to minimize corrosive action on the liners.B． the starting valvesC．the cylinder lubricators √D． the turning gear108.Before replacing a piston you should check that all rings are _____.A．free √B． fastenedC． brokenD． stuck109.Before replacing a piston you should check the rings to see that all clearances and gaps are _____ the permissible tolerances.A． aboveB． atC． overD．within √110.Before replacing a piston you should check the rings to see that all clearances and gaps are within the permissible _____.A． deflectionB． discrepancyC． errorD．tolerance √111.Before starting the engine the air bottle should be _____.A．pumped up √B． loadedC． dischargedD． opened112.Before starting the turning gear, _____ should be worked by hand to minimize corrosive action on the liners.B． the starting valvesC．the cylinder lubricators √D． the turning gear113.Blow-off of the relief valves of the engines cylinders may be caused by _____.A． too low leadB． water in fuelC． too tight springD．leakage √114.Blow-off of the relief valves of the main cylinders during operation indicates _____.A． the cylinder cover is crackedB． the injector holes is cloggedC．the cams are not properly set √D． fuel pump is leaking115.Bridge gauge can be used to measure _____ of a diesel engine.A．diameters of journals √B． deflections of crankwebsC． diameters of crankpinsD． none of the above116.Care and cleanliness are required when installing diesel fuel filters _____.A． to prevent the fuel system from becoming air-houndB． to prevent the fuel system becoming clogged with dirty particlesC． both of the abo ve √D．to prevent the lubricating oil from leaking out of the filter element117.Cast iron carrier rings, _____ machined grooves, are provided for all the pistons.A．caulked into √B． caulking intoC． pressed intoD． screwed into118.Charging is the filling of the engine cylinder with a supply of _____ for compression.A． waterB．fresh air √C． fuel oilD． gas119.Charging is the filling of the engine cylinder with a supply or charge of fresh air _____ compression.A． to needB．ready for √C． want toD． going to be120.Charging-air pressure increases if there is incorrect combustion and drop in the _____ of the diesel engine.A． machine efficiencyB． machinery efficiencyC．mechanical efficiency √D． mechanics efficiency/doc/5c7732040.html,pressed air is supplied by air compression to _____.A．the air receivers √B． the starting valvesC． the cylinder coversD． the distributors/doc/5c7732040.html,pressed air is used on board ship _____.A． for starting diesel enginesB． in pneumatic control systemC． in pneumatic toolsD．All the above are true √123.Constant cooling the various components of diesel engine has a number of functions except for _____.A． good lubricationB． low thermal stressC． good mechanical propertiesD．acid corrosion √124.Cooling enables the engine metals _____ their mechanical properties.A．to retain √B． to remainC． to maintenanceD． to have125.Cooling of engine is achieved by circulation a cooling liquid around internal passages within the _____.A． boilerB． heaterC．engine √D． cooler126.Cooling of engines is achieved by _____ a cooling liquid around internal passages within the engine.A． flowedB． flowingC． mixingD．circulating √127.Cooling of engines is achieved by circulating a cooling liquid around internal _____ within the engine.A． air。
轮机英语试题 液压系统和设备
Lesson 201817. A hydraulic motor may be driven by_____.A. an electric motorB. a diesel engineC. a compressorD. oil1818. In a hydraulic system, _____ are used to protect the system from over pressure.A. stop valvesB. check valvesC. safety valvesD. reducing valves 1819. Among the basic categories of equipment, which of the following are used to allow the hydraulic energy to be controlled?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors1820. Among the basic categories of equipment, which of the following are used to Convert mechanical into hydraulic energy?A. The hydraulic pumpsB. ValvesC. Hydraulic cylindersD. Hydraulic motors1821. Among the basic categories of equipment, which of the following is used to Convert hydraulic energy into continuous rotary motion?A. Hydraulic pumpsB. ValvesC. Hydraulic cylindersD. Hydraulic motors 1822. The rotor of the hydraulic motor rotates at a speed proportional to the_____.A. flow of oilB. pressure of oilC. A and BD. temperature of oil 1823. What type of valve is used to direct the flow of hydraulic fluid?A. Relief valveB. Direction control valveC. Stop valveD. Pressure control valve1824. External and internal leakage in hydraulic systems may be caused by_____. A. unusual vibration B. excessive worn partsC. abnormal pressureD. any of the above1825. Among the basic categories of equipment, which of the following are used to convert the hydraulic energy into linear motion?A. Hydraulic pumpsB. ValvesC. Hydraulic cylindersD. Hydraulic motors1826. _____ play a very important part in hydraulic systems by preventing interaction between different parts of the hydraulic circuit.A. MotorsB. Check valvesC. Safety valvesD. Reducing valve 1827. Which of the following can be used in hydraulic transmission system?A. Hydraulic oilB. Animal oilC. Light oilD. Fuel oil1828. A hydraulic machine is one that uses _____ to do work.A. liquidB. steamC. gasD. electricity1829. Hydraulic machinery failures are commonly caused by misalignment of thesystem components and by_____.A. hydraulic fluid contaminationB. excessive fluid frictionC. turbulent fluid flowD. fluid pressure surges1830. Hydraulic machinery failures are commonly caused by contamination of the hydraulic fluid and_____.A. fluid frictionB. fluid turbulenceC. component misalignmentD. pressure surges1831. Overheating of a hydraulic system may be a result of_____.A. changing pump discharge pressure in response to normal load variationsB. a high oil levelC. incorrect fluid viscosityD. continued slow re-circulation of the oil1832. Which of the following statements describes the functions of a reservoir used in a hydraulic system?A. Dissipate heat.B. Trap foreign matter.C. Separate air from the oil.D. All of the above.1833. When normal operating pressure is applied to the hydraulic oil used in a high-pressure system, the oil_____.A. viscosity will decreaseB. volume will increaseC. volume will decreaseD. pour point will be reduced1834. Which characteristic or condition will have the greatest effect on increasing a hydraulic oil's viscosity?A. Pour pointB. Cloud pointC. VacuumD. Pressure1835. Sluggish response or action of the hydraulic actuators may be a result of_____.A. insufficient loadB. excessively high oil viscosityC. relief-valve pressure setting too highD. reservoir level being maintained two inches above normal1836. Flexible hose under pressure in a hydraulic system will_____.A. tend to twist about its long axisB. expand in length and in diameterC. contract in length and expand in diameterD. flex at right angles to the applied pressure1837. Pressure in an operating hydraulic system is developed_____.A. only by the pump as its primary functionB. by resistance to the fluid flow through the systemC. by the thermal input to the system's fluidD. solely by the charge applied by the accumulators1838. When installing a hydraulic hose, which of the following precautions should be taken?A. The hose should not be twisted.B. The hose should be protected with a sleeve if it is subjected to rubbing.C. There should be some slack in the hose.D. All of the above.1839. Which of the listed pressure control valves would be used to establish the maximum operating pressure of a hydraulic system?A. Pressure-reducing valve.B. Unloading valve.C. Counterbalance valve.D. Pressure-relief valve.1840. In the design of hydraulic piping and equipment consideration is given to minimize turbulence in the hydraulic fluid, as this will cause_____.A. molecular fluid vibrationB. energy lossesC. wide pressure variationsD. mechanical damage to control valves1841. If you are given the job of adding hydraulic fluid to a mooring winch, and are not certain as to the type of fluid to use, you should_____.A. add fluid that is the same color as the fluid in the reservoirB. add turbine oil because it is always a good substituteC. add any oil that has the same viscosity as the hydraulic fluidD. check the winch manufacturer's instruction book1842. A gradual decrease in the discharge pressure of an operating hydraulic pump can be caused by_____.A. the four-way control valve failing to shiftB. the bleeder valve sticking in the open positionC. cold hydraulic fluidD. a clogged air vent falter on the oil reservoir1843. If the relief valve on the discharge side of a hydraulic pump lifts, the cause could be_____.A. a low load on the unitB. a clogged pump suction strainerC. a blockage in the line between the pump and hydraulic motorD. the hydraulic motor turning too fast1844. The major source of chemical contaminants in hydraulic fluid is_____.A. microscopic steel shavingsB. abrasive wasteC. anti-oxidant compoundsD. oxidation by-products1845. An internal bypass is provided on some hydraulic system suction strainers tohelp reduce the possibility of_____.A. aeration of the oilB. contamination of the oilC. pump cavitationD. spongy actuator movements1846. Overload protection on hydraulic system is provided by the use of_____.A. stop valvesB. pressure relief valvesC. balance valvesD. regulating speed valves1847. It is important with all hydraulic systems to ensure that interlocking arrangements provided for pump or motor control levers are_____ before the pump driving motor can be started.A. in the pert positionB. in the starboard positionC. in the neutral positionD. to be dismantled1848. Which of the following hydraulic systems is not one of the three sub-division of the Hydraulic drive system?A. Constant pressure systemB. Variable pressure systemC. Variable displacement systemD. Constant volume system1849. A variable displacement system of hydraulic drives consists of_____.A. a variable displacement axial piston pumpB. a constant displacement axial piston pumpC. a reciprocating piston pumpD. a centrifugal pump1850. Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion.A. hydraulic pumpsB. ValvesC. hydraulic cylindersD. hydraulic motor 1851. ___are used to limit the pressure in any particular portion and mainly control the pressure after the valve.A. Relief valveB. Check valveC. Safety valvesD. Reduces valve 1852. The rotor of the hydraulic motor rotates at a speed proportional to the _______.A .flow of oil B. pressure of oil C.A andB D temperature of oil 1853. What type of valve is used to direct the flow of hydraulic fluid?A. Relief valveB. Check valveC. Stop valveD. Pressure control valve 1854. _______play a very important part in hydraulic systems by preventing interaction between different parts of the hydraulic circuit.A. MotorsB. Check valvesC. Safety valvesD. Reducing valve1855. Which of the following can be used in hydraulic transmission system?A. hydraulic valvesB. animal oilC. light oilD. fuel oil1856. Among the basic categories of equipment, which of the following are used to convert are hydraulic energy into linear motion?A. hydraulic pumpsB. ValvesC. hydraulic cylindersD. hydraulic motor 1857. Which one of following statements is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?A. the direct acting relief valve is used for controlling lower flows and pressuresB. the pilot operated relief valve is used for controlling higher flows and pressureC. the pilot operated relief valve is used for controlling lower flows and pressureD. the controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve1858. Compensated flow control, or constant flow valves are used in hydraulic systems to ______.A. compensate for major leaks in the systemB. maintain the original fluid viscosityC. allow for changes in pressure and temperature within the systemD. assure constant fluid temperature1859. If a hydraulic pump is overheating, the cause may be ____.A. excessive internal leakage in the pumpB. low discharge pressure and fluid flowC. excessive fluid level in the hydraulic reservoirD. operation of the pump at 100% efficiency1860. Check valve is used to control_____A. direction of oil flowB. pressure of return oilC. byass of filterD. high pressure overflow1861. Hydraulic control check valve is generally used to _____ in the marine hydraulic mechanism.A control the back pressure of return oilB lock the oil lines under some conditionsC change the direction of oil flowD act as relief valve1862. Overflow valve is used to_____A control the fluid flow through itB prevent the pressure before it over the specified valueC make the pressure after it steadyD control the direction of oil flow1863. Generally the symbol (GB786.1-93) of overflow valve is _____A B C1864.The symbol (GB786.1-93) at right side represents _____A. overflow valve B reducing valve C relief valve D sequence valveA. overflow valve B reducing valve C relief valve D sequence valve1866. _____ can be used to prevent hydraulic system overloaded or keep the pressure of oiloutlet from pump constant.A Overflow valveB Reducing valveC Balancing valveD Reducing valve or balancing valve1867. Which of the following problems will occur if the internal drain at either end of a hydraulic , two-way, spool-type directional control valve cylinder were to become plugged ?A. The reservoir would become vapor bound (范围)B. The valve would be placed in hydraulic lockC. The spring loaded relief ports would openD. The buffering chambers (缓冲室) would be unable to function1868. in the variable delivery pump, moving the spindle more from the central point will cause _______ fluid to be pumped and consequently _______ pressure is generated to drive the rams.A more; moreB more; lessC less; moreD less; less1869. When the tilting box of a variable stroke axial-piston pump is perpendicular tothe pump shaft, which of the following conditions will exist?A the pistons reciprocateB the “B” end cylinder barrel rotatesC there is no fluid flowD power is transmitted hydraulically1870. Auxiliary components for hydraulic systems include accumulators, _______, reservoirs, heat exchangers, seals, pressure gauges and so on.A hydraulic pumpsB filtersC reservoirsD hydraulic control valves 1871. Auxiliary components for hydraulic systems include accumulators, filters, reservoirs, _______, seals, pressure gauges and so on.A hydraulic control valvesB hydraulic pumpsC hydraulic actuatorsD heat exchangers1872. Which of the following is not the advantage of hydraulic transmission?A the hydraulic transmission can easily realize automation and the pressure, flow rate and the flow direction can be regulated and controlledB the hydraulic system cannot protect from over-load easily, which can be done by electricitynor machine equipmentC hydraulic equipment has a good working stabilityD a hydraulic system can produce higher power than electrical equipment under the same volume1873. Which of the following is not the advantage of the hydraulic transmission?A more energy loss exists in a hydraulic transmission because of the oil leaks in hydraulic systemB hydraulic equipment has a good working stabilityC a hydraulic system can produce higher power than electrical equipment under the same volumeD the hydraulic system can protect from over-load easily, which cannot be done by electricity or machine equipment1874. A reservoir, as used in hydraulic systems aboard ship, is used to store hydraulic oil. Another function is to ______________A. act as a shock absorberB. maintain the stored oil under pressureC. act as a base or foundation for the power unitD. eliminate pressure surges in the system。
第30期轮机英语考试题
中华人民共和国海事局2003年第1期海船船员适任证书全国统考试题(总第30期)科目：轮机英语试卷代号：801适用对象：无限、近洋航区3000KW及以上船舶轮机长（本试卷卷面总分100分，及格分为70分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B铅笔涂黑。
第1题至68题，每题1分，第69题至76题，每题1.5分,第77题至78题,每题10分。
一、单项选择题：1. The cylinder head, cylinder liner and _____ form the combustion chamber．A. frameB. pistonC. crankcaseD. explosion plate2. A diesel engine burns ________ a gasoline engine of the same capacity in the same period oftime．A. as much fuel asB. less fuel thanC. less fuel asD. more fuel than3. Acid solution _____ in the system can be tested from time to time by putting some on to a pieceof lime．A. strengthB. denseC. percentageD. velocity4. A： Please tell me the specifications and quantity． B： _____．A. Pump diesel oil firstB. 300 tons of 180 cst fuel oilC. The figure is all rightD. OK, I'll sign it5. The film of oil between the rings and the liner is not only essential for the lubrication but alsoplays an important part in achieving _____．A. an oil sealB. removing heatC. a gas sealD. cooling the piston6. The tendency for lubricating oil to thin out at high temperatures and thicken at low temperatureswill be characterized by a _____．A. low viscosity indexB. high viscosity indexC. high neutralization numberD. low demulsibility quality7. Operating a diesel engine for prolonged periods, with a closed freshwater cooling system, attemperatures lower than the normal design temperature can cause _____．A. the formation of sulfuric acidB. a decrease in lube oil viscosityC. a decrease in cooling water pHD. a thermostat failure8. ______ is usually driven by the engine camshaft and supplies pilot air to the cylinder air startvalve．A. An air receiverB. An operating valveC. An automatic valveD. An air distributor9. The difference between a supercharged engine and an un-supercharged engine is that _____operates at an increased pressure．A. the laterB. the latterC. the formerD. the farmer10. A sealing arrangement is provided at _____ of the tail-shaft with the propeller and conecompleting the arrangement．A. both endsB. neither endC. the outboard endD. either end 11. The linear motion of a diesel engine piston is converted to the rotary motion required to drivegears, propeller shafts, and generators by the _____．A. flywheelB. crankshaftC. journal bearingsD. camshaft12. The use of a poor quality piston cooling oil can lead to rapid deterioration of its properties withthe resultant formation of deposits in the piston crown which in turn results in a considerable _____ in heat transfer．A. advantageB. superiorC. increase D． reduction13．We should not start the engine unless the turning gear is _____ ．A. onB. disengagedC. boltedD. unscrewed14. The ability of the governor to prevent fluctuations in engine speed is termed _____．A. sensitivityB. stabilityC. promptnessD. speed droop15. A governor automatically controls engine speed by regulating _____．A. fuel supplyB. firing orderC. engine loadD. oil level16. It is relatively _____ to drive the compressor directly from the engine by chain/or othermechanism because some of the additional power is absorbed．A. economicalB. expensiveC. inexpensiveD. loss17. Load control on a diesel engine is accomplished by _____．A. regulating the speed of the turbochargerB. rotating the fuel injector pump plungerC. regulating the speed of the fuel oil transfer pumpD. changing engine timing18. _____, the following possible causes should be investigated．A. Should the engine stop without apparent reasonB. The engine should stop without apparent reasonC. The engine stops without apparent reasonD. The engine is stopped without apparent reason19. To operate a centrifugal fire pump at reduced capacity, you should _____．A. readjust the relief valveB. throttle the suction lineC. throttle the discharge valveD. open the priming line20. If you were operating a centrifugal water service pump with worn wearing rings, the _____．A. pump would be very noisyB. pump would vibrate excessivelyC. pump would develop insufficient flowD. stuffing box would leak excessively21. Which bearing half will receive the greatest load in a two-stroke/cycle diesel engine?A. Lower half of the connecting rod bearing at the crankshaft end of the rod.B. Upper half of the main bearing.C. Lower half of the cross-head pin bearing in the connecting rod.D. All bearing halves share an equal load.22. Where tanks are arranged for either oil or ballast _____ must be fitted in the pipeline．A. a change-over chestB. a head tankC. a emergency bilge pumpD. an air cooler23. The boiler is fired _____ the demand for steam exceeds that available from exhaust gas heating．A. wheneverB. howeverC. whereverD. whether24. In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the followingprocedures should be undertaken prior to filling the boiler with fresh water?A. The safety valve escape piping should be disconnected from the valve body and a blankinserted．B. The boiler vent valves should be opened．C. All handhole/manhole covers should be tightened up as much as possible to preclude anyleaks．D. All of the above．25. The bilge main is arranged to drain any watertight compartment_____ ballast, oil or water tanksand to discharge the contents overboard．A. rather thanB. other thanC. in addition thatD. except for26. When in operation, it is unavoidable that a small amount of oil _____ through leakage, and inorder to compensate for these leaks the system is connected to a feed pump．A. escapesB. overheatsC. expandsD. accelerates27. When reassembling the bowl of a disk-type centrifuge, the bowl or locking ring is rotated_______．A. clockwise, due to the bowl rotating clockwiseB. clockwise, due to the bowl rotating counterclockwiseC. counterclockwise, due to the bowl rotating clockwiseD. counterclockwise, due to the bowl rotating counterclockwise28. Under the regulations implementing MARPOL, a mobile offshore drilling unit is required to havean International Oil Pollution Prevention (IOPP) certificate when the unit _____．A. is drilling on the Outer Continental ShelfB. moves to a new drilling location in U.S. watersC. engages in a voyage to a port of another country which is a party of MARPOLD. All of the above.29.The oil sludge is burnt in the _____onboard. I‟l l show you the ashes．A. boilerB. main engineC. auxiliary engineD. incinerator30. Among the basic categories of equipment, which of the following are used to convert mechanicalinto hydraulic energy?A. the hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulic motors31. If a radial piston hydraulic pump fails to deliver rated fluid volume, the cause can be _____．A. contaminated fluidB. pitted thrust ringsC. worn pintle bearingsD. obstructed suctions passage32. The hand steering is a method by which the motion of the rudder is controlled with _____．A. a motor-driven steering wheelB. a pneumatic steering wheelC. a hand-driven steering wheelD. an electric steering wheel33. If a heavy sea strikes the _____, the shock is transmitted through the tiller to the rams．A. propellerB. rudderC. bow thrusterD. stabiliser34. An AC synchronous transmission type remote steering control system consists of a _____．A. transmitter at the steering station and a receiver at the steering engineB. reversible motor at the steering station geared to the steering pumpsC. small induction motor on the bridge which controls the rudder through pulleysD. variable displacement hydraulic pump driven by a reversible DC motor35. A knocking sound from one cylinder of an operating air compressor indicates _____．A. a defective or broken high pressure un-loaderB. a loose valve plateC. excessive overloadD. no compression36. When a flash-type evaporator is to be secured for an extended period of time, the entire unitshould be drained, cleaned, and _____．A. completely filled with saltwaterB. filled with de-scaling compoundC. tightly closed to exclude airD. vented to the atmosphere37. The compressed air is supplied by ___ to the air reservoirs．A. compressorsB. forced fansC. ventilatorsD. generators38. A dirty intercooler on the ship service air compressor will result in _____．A. decreased compression ratioB. higher than normal power consumptionC. un-loader malfunctionD. water in the lubricating oil39. Accidental flooding of the engine room bilges by the bilge main is prevented by _____．A. stop-check valves installed in the bilge suction manifoldsB. using a positive displacement reciprocating bilge pumpC. installing eductors in all bilge rose boxesD. installing a swing check before each bilge valve40. When a refrigeration compressor is in the 'off ' cycle, the thermal expansion valve will_____．A. always be wide open when the compressor restartsB. continue to operate if the system were in operationC. remain open until evaporator pressure equalizes, then close until the compressor restartsD. always be completely closed until the compressor restarts41. While troubleshooting a refrigeration system for low head pressure, liquid refrigerant floodingback from the evaporator is determined to be the cause. It may be necessary to _____．A. change the expansion valve adjustmentB. readjust the water regulating valve to increase the flow of waterC. purge air from the condenserD. clean the waterside of the condenser42. When adding oil to a refrigeration system, precautions must be taken to ensure that_____．A. the compressor suction pressure is not too highB. all air is purged from the pump and charging fittingsC. the high pressure cutout switch is held open to prevent accidental startingD. the condenser is completely shutdown first43. Your assigned emergency stations aboard your vessel can be found on the ship's _____．A. muster listB. certificate of inspectionC. clearance papersD. permit to proceed44. If the fire goes out in an automatically fired auxiliary boiler and the burner continues to supplyfuel, there is a potential danger of _____．A. overpressure and dry firingB. a severe furnace explosionC. spalling damage to the brickworkD. heat damage to the atomizer45. The ___ is a measure of the phase difference between voltage and current and is expected as thecosine of phase angle．A. powerB. efficiencyC. effective powerD. power factor46. A constant output voltage from an AC generator is maintained by the _____．A. prime mover governorB. exciter generatorC. voltage regulatorD. reverse power relay47. When working on a high voltage circuit, you should always have another person present with you.This person should have a good working knowledge of _____．A. the circuit being worked on and the location of all switches and circuit breakers controlling itB. first-aid techniques for treating electrical shockC. cardiopulmonary resuscitation (CPR)D. All of the above．48. Which of the following should be the FIRST step in removing a generator from parallel operation?A. Trip the generator off the switchboard．B. Turn off all electrical equipment．C. Remove the load from the 'off going' generator．D. Increase the cycles of the generator staying on the line．49. The operating medium for control systems may be _____．A. compressed airB. hydraulic oilC. electricityD. All of the above．50. Loss of lubricating oil pressure to the main propulsion diesel engine will actuate a/an _____．A. overspeed tripB. audible/visual alarmC. the ships/boats general alarmD. reserve oil storage tank51. The most common type of containment device for spilled oil on the water is the use of _____．A. strawB. boomsC. skimmersD. chemical dispersants52. Electric insulation is made of organic substances and so gradually ___ with age．A. deterioratesB. increasesC. are fouledD. becomes better53. While on watch in the engine room, you hear a continuous sounding of the fire alarm. Which ofthe following actions should you take?A. Make an entry in the official logbook．B. Open the master control valves on the fixed CO2 system．C. Start the fire pump and check discharge pressure．D. Secure auxiliary condenser overboard discharge．54. After the trouble of the automatic control system has been completely eliminated, assistance is______ required.A. remainedB. stillC. no longerD. much more55. A circuit breaker differs from a fuse in that a circuit breaker _____．A. melts and must be replacedB. is enclosed in a tube of insulating material with metal ferrules at each endC. gives no visual indication of having opened the circuitD. trips to break the circuit and may be reset56. Ambient temperature is the _____．A. amount of temperature rise with no loadB. temperature of the compartment where the motor is locatedC. normal operating temperature, less the room temperatureD. amount of temperature developed by an operating moto57. Which of the following statements represents the main difference between a relay and a contactor?A. Contactors control current and relays control voltage．B. A relay is series connected and a contactor is parallel connected．C. Contactors can handle heavier loads than relays．D. Contactors are made from silver and relays are made from copper．58. The pressure difference before and after the lube oil filter indicates _____ the filter should becleaned．A. whenB. howC. whereD. whether59. In order to ensure the safety of the ship and its equipment during UMS operation, certainessential functions _____．A. must be providedB. may be providedC. have providedD. can be provided60. In the engine department, the_____ is looked upon to provide the leadership that is needed．A. captainB. chief engineerC. chief officerD. chief motorman61.Duty officer informs us that the vessel is out of harbor and in “Full Ahead”.We are going to run_____．A. diesel oil instead of fuel oilB. fuel oil instead of diesel oilC. diesel oil instead fuel oilD. fuel oil instead diesel oil62. We still do not know _____．A. where is the troubleB. where does the troubleC. where the trouble isD. what is the trouble63.The order“Bow thrust stop.”means“_____”．A. Bow thrust full to portB. Bow thrust full to starboardC. No bow thrust revolutionsD. No stern thrust revolutions64. Under the provisions of applicable international conventions, ships entitled to fly the flag of aParty are subject, while in the port of a Party, to control by officers duly authorized by theParty． Ships of non-parties or below convention size shall be given ______．A. more favorable treatmentB. less favorable treatmentC. no more favorable treatmentD. the most favorable treatment65. ______ may have two emergency source of power, thus requiring two emergencyswitchboards．A. Large passenger vesselsB. General cargo shipsC. Container shipsD. Oil tankers66. With regards to a diesel engine crankcase explosion, the most violent is the _____．I．primary explosion II． secondary explosionA. I onlyB. II onlyC. both I and IID. neither I or II67. A certificate， called a(an) ______ ,should be issued to a ship by the Administration．A. ISMB. DOCC. SMCD. PS68. When making entries in the Oil Record Book, the date, operational code, and item number shallbe inserted in the appropriate columns. Furthermore, the required particulars shall be ____．A. recorded only for accidental oil dischargesB. recorded only for operations involving discharge of oily wasteC. signed by the oiler who enters them in the Oil Record BookD. recorded chronologically in the blank space二、关联题（每组关联题题干下有4个小题，每小题4个选项）第一组：Please carefully read the following table and then answer the questions according to the information from this table.Table : types of fire extinguisherA. solid materialsB. liquid materialsC. petroleum gasD. electrical equipment70. Which type of fire extinguishers can be used to extinguish all classes of fires?A. sodaB. waterC. foamD. dry powder71. There is one type of fire extinguisher which is injected directly at base of fire making use of gasthat can not be used in accommodation. Which one is it?A. waterB. foamC. CO2D. dry powder72. When used to extinguish class B fire, extinguisher should be turned upside down and cover firesmoothly.A. a soda and acidB. a foamC. a CO2D. a dry powder第二组Where routine maintenance is concerned, the governor should be checked regularly for adequate lubrication. The operating range is usually quite small, giving a tendency for them to wear over limited areas. Then a sudden and larger change in speed than normal may carry the governor onto a ridge of debris or gummy oil deposit so that it may stick at that point. To restrict this problem as far as possible, the governor pivots, slide, etc. should be cleaned and well lubricated whenever possible. It should be born in mind that the governor structure is such that, were the spring to fracture in any way, the flyweights would be able to move outwards and shut the engine down. The connections from the governor to the fuel racks should be designed in such a way that the governor can both increase and decrease the fuel within the bounds of some hand setting; i.e. the governor can adjust the fuel settings but cannot release more fuel to the engine than is dictated by some predetermined value set by the engine operator.To overcome the above limitations of the CF governor, …servo governors‟ have been developed. These use the power of hydraulics to pump the heavier fuel rack systems associated with larger engines into the desired posit ion. This …powered‟ operation is rapidly and accurately achieved, and the hydraulic flow can be either electrically or mechanically controlled. The speed sensing can be done by a tachometer arrangement that can be set to the desired speed, and on sensing any variation a solenoid operated flow valve allows pressurized hydraulic flow into a servo system of pistons/plungers which resets the rack positions. Although this system is quite effective, more mechanically controlled governors are fitted to larger engines. These use the principle of the CF governor, i.e. fly weights acting against spring pressure, but instead of the slide working directly onto the fuel racks it simply regulates the flow of hydraulic fluid to servo pistons controlling the rack positions. this system therefore has the proven reliability and sensitivity of the small CF governor and yet develops quite a large governor effort through the hydraulic fluid.73.Which of the following is the reason that the governor discussed sticks?A. The governor is not sensitive normally.B. It is because of wear in normal working range.C. The change of speed is too small .D. All of the above are true.74.If the spring fractured，______.A. the fly weights would fracture tooB. the speed would be greatly increasedC. the operator would set the valueD. the fuel would be cut off75.The “servo governors” ______.A. can produce a large forceB. are mechanically controlledC. use flyweights to sense the speedD. All of the following are true.76.The second paragraph is mainly about ______.A. hydraulic powerB. CF governorsC. advanced governors in stead of CF governorD. electrical or mechanical hydraulic flow三、中译英（共2题，请将答案写在答题纸上）77.PSC官员在检查机械处所时，如果发现阀手轮丢失、水和油长期渗漏的迹象或机器底座的延伸性锈蚀，则说明船舶对系统的维护不能令人满意。
1002级轮机英语期末考试B
1002级轮机英语期末考试（B）考试班级：1002轮机2.3.4.5班班级：姓名：分数：第一部分：单选题1.The main generators are connected to_____.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards2. _____ control system is one in which the control action is independent of the output.A. Feed backB. Negative feed backC. Close loopD. Open loop3.The coil of wire rotating in the magnetic field produces the_____.A. voltageB. currentC. powerD. frequency4. _____ shall be continuously powered and shall have an automatic changeover to a stand by power supply in case of loss of normal power supply.A. Cooling systemB. Alarm systemC. The air conditioning installationD. The mooring equipment5. The operation of paralleling two alternators requires the voltages to be_____ and also in phase.A. zeroB. eliminatedC. differentD. equal6. _____ is the actual value of the controlled condition.A. Desired valueB. Set valueC. Measured valueD. Deviation7. With UMS, when the engine room is unwatched_____ will control the main engine.A. the bridge officer on watchB. the chief engineerC. the duty engineer.D. the duty motorman8. The staring current of a motor is_____ the rated current.A. the same asB. much larger thanC. less thanD. none of the above9. The alternating current generator supplying a load has a voltage drop resulted from the load. When the load has a lagging power factor this voltage drop_____.A. is smallB. may be neglectedC. is usefulD. is considerable10. The magnetic field is provided by electromagnets so arranged that adjacent poles have _____.A. opposite polarityB. the same polarityC. negative polarityD. positive polarity11. This arrangement is_____ if the elements are directly connected to one another and the control action takes place without human involvement.A. a manual closed loopB. a manual opened loopC. an automatic closed loopD. an automatic opened loop12. _____ is used to produce electric power.A. An alternatorB. A fresh water generatorC. A compressorD. A clarifier13. A circuit breaker differs from a fuse in that a circuit breaker_____.A. melts and must be replacedB. is enclosed in a tube of insulating material with metal ferrules at each endC. gives no visual indication of having opened the circuitD. trips to break the circuit and may be reset14. The output voltage of a 440 volt, 60 hertz, AC generator is controlled by the ______.A. prime mover speedB. exciter output voltageC. load on the alternatorD. number of poles15. A direct current passing through a wire coiled around a soft iron core is the description of asimple_____.A. magnetic shieldB. electromagnetC. piezoelectric deviceD. electromagnetic domain16. As a general rule, the first troubleshooting action to be taken in checking faulty electric control devices is to_____.A. draw a one line diagram of the circuitryB. test all fuses and measure the line voltageC. take megger readingsD. insulate the apparatus from ground17. Which of the following devices are protected from being motorized by a reverse-power relay?A. AlternatorsB. Wave guidesC. ExcitersD. Amplidynes（电机放大机）18. The primary function of an electric motor is to_____.A. develop torqueB. generate high voltagesC. produce a magnetic fieldD. generate high electrical resistance19.The total power consumed in a parallel circuit is_____.A. the sum of the powers used in each load (resistor)B. divided by the number of loadsC. always less than the power used in the smallest loadD. the sum of the powers used in each individual load never more than the power used in the largest load20. In the engine department, the_____ is looked upon to provide the leadership that is needed.A. captainB. chief engineerC. chief officerD. chief motorman21. During an engine room watch if immediate action is necessary to ensure safety of the ship its machinery and crew_____.A. the chief engineer must be informed at firstB. the captain must be informed at firstC. it must be taken by the duty engineerD. the generator engine must be stopped22. Ship fire-fighting organization includes_____.A. general alarm and fire control plansB. muster stations and duties of individualsC. patrol systemD. All of the above23. The lowest temperature at which the vapor formed from a liquid ignites and continues to burn steadily in the presence of an ignition source is called the_____.A. flash pointB. fire pointC. upper explosive limitD. lower explosive limit24. A fire is considered "under control" when_____.A. all hands are at their fire stationsB. all fire-fighting equipment is at the sceneC. the fixed systems are activatedD. the fire is contained and no longer spreading25. A(n)_____ is a mechanical attack on the metal surface which may be due to a disturbance in the flowof the water over the blade of the propeller.A. erosionB. corrosionC. pittingD. dezincification26. When a vessel is in dry-dock, the vessel's engineers should_____.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging27. The order "Bow thrust stop " means “_____”.A. Bow thrust full to pertB. Bow thrust full to starboardC. No bow thrust revolutionsD. No stern thrust revolutions28. _____,it is usually to give the main diesel engine a brief trial on power ahead and astern .A. Before finished with the engineB. After finished with the engineC. Before “stand-by” is given to the bridgeD. After “stand-by” is given to the bridge29. Which of the circumstances listed is an exception to the garbage discharge requirements in Annex Vto MARPOL 73/78?A. The garbage to be discharged will sink.B. Garbage accumulation onboard has exceeded storage space.C. A person falls overboard, and a plastic ice chest is thrown for flotation.D. The destination port or terminal cannot receive garbage.30. A person on a fixed or floating platform engaged in oil exploration, located 10 nautical miles fromnearest land MAY discharge_____.A. food wasteB. food, ground to less than 1"C. paper, ground to less than 1"D. None of the above31. Annex IV of MARPOL 73/78 contains regulations for the prevention of_____.A. pollution by oilB. pollution by noxious liquid substances carried in bulkC. pollution by sewage from shipsD. pollution by garbage from ships32. According to Annex I of MARPOL 73/78, oily waste from cargo tanks of oil tankers can bedischarged when the ship is more than _________away from the nearest land.A. 50 nautical milesB. 30 nautical milesC.15 nautical milesD. 12 nautical miles33. _____ should not undertake any task which will interfere with the supervision duties relating to the main machinery and associated equipment.A. The watch keeping personnelB. The chief engineerC. The person on a bunker bargeD. Any of the above34. The operating diesel generators will have their exhaust temperatures, cooling water and lubricating oil temperatures and pressures_____ in much the same way as for the main engine.A. to be keptB. loggedC. changedD. has remained35. When under maneouvring conditions with the machinery being manually operated the control unit or console should be_____.A. automatically controlledB. continuously mannedC. off powerD. none of the above is true36. The officer in charge of the engineering watch shall ensure that all machinery involved with the maneuvering of the ship can immediately be placed in the_____ of operation when notified that the ship is in congested waters.A. manual modeB. automatic modeC. remote modeD. follow-up mode37. With UMS, when the engine room is unwatched,_____ will control the main engine.A. the bridge officer on watchB. the chief engineerC. the duty engineerD. the duty motorman38. STCW shall apply to seafarers_____ on board seagoing ships entitled to fly the flag of a Party.A. servedB. servingC. surveyedD. surveying39. If the PSCO from general impressions or observations on board has_____ for believing that the ship, its equipment or its crew do not substantially meet the requirements, the PSCO should proceed to a more detailed inspection.A. clean reportB. serious deficienciesC. clear groundsD. detention report40. Under the provisions of applicable international conventions, ships entitled to fly the flag of a Party are subject, while in the port of a Party, to control by officers duly authorized by the Party. Ships of non-parties or below convention size shall be given_____.A. more favorable treatmentB. less favorable treatmentC. no more favorable treatmentD. the most favorable treatment41. The Port Authorities, in accordance with the IMO resolutions have been carrying out_____ to enhance safety of ships.A. CPPB. FPPC. PSCD. FSC42. For a general cargo ship, _____is not the necessary certificate/document that the PSCO will examine.A. survey report fileB. Minimum safe manning documentC. certificates of competencyD. international oil pollution prevention43. The main purpose of port state control is not to ______A. prevent an unsafe ship proceeding to seaB. prevent a ship threatening the marine environmentC. fine the shipsD. confirm a safe sailing44. In deciding to detain a ship or not, the PSCO would better not_______.A. make his decision independentlyB. request the owner’s representatives to provide proposalsC. cooperate with the flag State Administration’s representativesD. consult the organization responsible for issuing the relevant certificates45. When a vessel is in dry-dock, the vessel's engineers should_____.A. examine the condition of the propellerB. chip and paint all hull protection zincsC. install new docking plugs in all cofferdamsD. inspect the hull for hogging or sagging46. Which one of the following repair will cost the least cost? ______A. routing docking repairB. voyage repairC. damage repairD. convention47. "Before disconnecting the oil pipe, would you flush the oil retained in the pipe?" asked the oil barge owner.A. by using of fresh waterB. with compressed airC. by using of sea waterD. with chemical compound48. _____ shows 1.2 meter and the specific gravity of the oil is 0.96. According to the measuring scale, that makes 150 tons.A. The piston rodB. The push rodC. The sounding rodD. The connecting rod49. A: Please tell me the specifications and quantity. B: _____.A. Pump diesel oil firstB. 300 tons of 180 cst fuel oilC. The figure is all rightD. OK, I'll sign it50. The distance between the bottom of the hull and the waterline is called_____.A. tonnageB. reserve buoyancyC. draftD. freeboard51. What will be the phase angle relationship of a six-pole, three-phase, rotating field generator _____.A. 60B. 120C. 180D. 36052. The most common type of containment device for spilled oil on the water is the use of _____.A. strawB. boomsC. skimmersD. chemical dispersants53. If you detect oil in the water around your vessel while discharging fuel, the FIRST thing to do is_____.A. try to find out where the oil is coming fromB. call the MasterC. have the pump man check the discharge pipingD. shutdown operations54. As its temperature rises, the volume of fuel oil in the tanks will_____.A. remain the sameB. increaseC. decreaseD. none of the above55. During fueling operations, which of the listed precautions should be taken when topping off fueltanks?A. Reduce the pumping rate by closing the deck filling valve.B. Close all overflow valves.C. Place 5 gallon containers under all flange connections in the fuel line.D. Reduce the pumping rate and sound tanks frequently as the level rises.56. Your assigned emergency stations aboard your vessel can be found on the ship's_____.A. muster listB. certificate of inspectionC. clearance papersD. permit to proceed57. Which of the following gases represents the greatest threat to personnel safety in an engine room where the exhaust is leaking from a diesel engine?A. Carbon dioxideB. Carbon monoxideC. Carbon trioxideD. Hydrogen sulfide58. Where should muster lists be posted?A. In crew's accommodation spacesB. On the navigating bridgeC. In the engine roomD. All of the above.59. An oxygen indicator will detect_____.A. the amount of oxygen in a spaceB. the presence of harmful amounts of carbon monoxideC. concentrations of explosive gasD. All of the above60. Which of the petroleum products listed has the lowest flash point?A. Hydraulic oilB. Lubricating oilC. Diesel oilD. Refrigeration oil61. Upon the completion of required tests, a_____ should be placed on each extinguisher, showing the date and the person who completed the tests.A. capB. discC. tagD. cover62. The main causes of fire on board ships are_____.A. oil leakage in engine-roomB. hot work (welding, cutting, etc.)C. static electricityD. All of the above63. The fire-fighting practical training should take place in spaces which provide truly realistic training conditions, and whenever possible and practical should be carried out in_____.A. darknessB. daylightC. simulated engine-roomD. all of the above64. To prevent the spread of fire by conduction, you should_____.A. cool the bulkheads around the fireB. remove combustibles from direct exposureC. close all openings to the areaD. shut off all electric power65. Burning diesel oil should be treated as which class of fire?A. Class "A"B. Class "B"C. Class "C"D. Class "D"66. Convection spreads a fire as a result of_____.A. transmitting the heat of a fire through the ship's metalB. burning liquids flowing into another spaceC. heated gases flowing through ventilation systemsD. the transfer of heat across an unobstructed space67. Fire detecting systems on merchant vessels may be arranged to sense_____.A. smokeB. rate of temperature riseC. ionized particlesD. all of the above68. A burning AC motor would be considered what class of fire?A. Class "A"B. Class "B"C. Class "C"D. Class "D"69. Which of the following statements is least likely to cause the ignition of fuel vapors?A. Static electricityB. An open running electric motorC. Loose wiringD. Explosion proof lights70. A fire may be spread by which of the following means?A. Conduction of heat to adjacent surfacesB. Direct radiationC. ConvectionD. All of the above71. A fire and boat drill on a tank vessel shall, by regulation, include_____.A. starting the fire pumpsB. checking fireman's outfits and other personnel rescue equipmentC. checking relevant communications equipmentD. All of the above.72. Besides heat, fuel, and oxygen, which of the following is necessary for a fire to exist?A. Chain reactionB. Thermal actionC. Chemical occlusionD. Pyrotechnical reaction73. Which of the listed classes of fire is considered as one involving electrical equipment?A. Class "A''B. Class "B"C. Class "C"D. Class "D"74. A fire involving aluminum powder would be a class_____.A. "A" fireB. "B" fireC. "C" fireD. "D" fire75. One of the disadvantages of using carbon dioxide to extinguish a fire in an enclosed space is_____.A. the "snow" which is sometimes discharged along with the gas is toxicB. prolonged exposure to high concentrations of C02 gas causes suffocationC. rapid dissipation of the CO2 vaporD. the CO2 gas is lighter than air and a large amount is required to extinguish a fire near the deck76. A fire in a pile of canvas would be classified as a_____.A. class AB. class BC. class CD. class D77. For which of the listed classes of fire combinations would carbon dioxide be most suitable as the extinguishing agent_____.A. Class "A" and class "B"B. Class "B" and class "C"C. Class "A" and class " C"D. Class "C", class "D", and class "E"78. CO2 extinguishes a fire by_____.A. a blanket of bubbles formed on the surface of the fireB. smotheringC. coolingD. isolating the heat from the fuel79. The longer an oil fire is permitted to burn, the_____.A. harder it is to extinguishB. easier it is to extinguishC. less chance there is of re-ignitionD. easier it is to control80. When welding or burning aboard a vessel, you must be certain that the space _____.A. is properly ventedB. contains no explosive fumesC. has no oil in the bilgesD. All of the above 81, "Movement of engine no longer required." means “_____”.A. Stop EngineB. No Engine RevolutionsC. Stand-by EngineD. Finished With Engine82. When preparing an engine for running, the cooling water temperature ________A. should be kept at a proper level by a coole rB. should be raised to about 800CC. should be raised graduallyD. should be lowered to about 600C83. UMS stands for ______A. ultra much spaceB. universal medium systemC. unit mac, ned spaceD. unattended machinery space84. The operation of paralleling two alternators requires the voltages to be_____ and also in phase.A. zeroB. eliminatedC. differentD. equal85. The emergency generator or emergency battery is connected to_____ on most large ships.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards86. Moisture in a D.C. motor would cause_____.A. short circuitB. speed upC. slow downD. hunting87. The current flowing first in one direction and then in another is called_____ current.A. an alternatingB. a rushC. a directD. an exciting88. _____ is a precaution which contributes to avoiding trouble under normal operating conditions.A. Constant inspectionB. Keeping constant loadC. Remaining constant temperatureD. varying speed第二部分:关联题1.At every dry-docking, propellers should be carefully examined and the slightest defect at once rectified. Similarly, any unusual vibration or noise whilst at sea should be investigated immediately and, if the cause cannot be found inlxmrd, then the first opportunity must be taken of an under-water inspection. The expert examination and repair of propellers is a service provided by the leading manufacturers. Whenever possible, use should be made of this service because, first, it is not always easy to detect slight damage and, secondly, inexpert work can quite easily cause irreparable harm.Cracks formed at or near blade edges, no matter how small, are potentially dangerous, ff a crack should be found close to the boss (within 0.45 of the propeller radius) the makers should be consulted as any repair in this region involving heating can leave very high residual stresses which can only be removed by annealing the complete propeller. Small cracks can be temporarily stopped from spreading by drilling a hole of at least 1 mm in diameter at the extremity of the crack. The hole should be plugged to avoid any risk of cavitation.89. An under-water inspection should be taken_____.A. whenever any unusual vibration occursB. whenever any abnormal noise occursC. whenever the cause for any unusual vibration or noise while at sea cannot be found inboardD. whenever every dry docking is carded out90. Why should the service provided by the leading manufacturers be used wherever possible?A. Only because the service is free of charge.B. Only because it is not easy to detect slight damage.C. Only because inexpert work can quite easily cause irreparable harm.D. Because it is difficult to find slight dmnage and inexpert work can result in irreparable harm.91. If a crack should be found near the boss (within O. 45 of the propeller radius), which action should be taken first?A. Repairing this regionB. Annealing the complete propellerC. Consulting the makersD. Drilling a hole with diameter less than 1 mm92. Which of the following statements is tine?A. If cracks formed near blade edges are very small, no care should be taken.B. Only by annealing the complete propeller can the high residual stresses be removed.C. Small cracks can be permanently stopped from spreading by drilling a hole.D. The hole should be drilled at the middle of the crack.2.The CO2 fire extinguishing installation may incorporate a smoke sampling system so that fire can be detected in the early stage at the smoke detecting cabinet, which is situated in the wheelhouse. Each cargo compartment is individually connected to the smoke detecting cabinet with small bore piping and, by a suction fan mounted on the wheelhouse roof, samples of the air in each cargo space are continually drawn up to the smoke detecting cabinet and discharged into the wheelhouse or the atmosphere through a diverting valve. Thus smoke from a fire in any cargo space can be immediately detected.93. The CO2 fire extinguishing system may combine with_____ to detect fire in the earlystage of fire development.A. a smoke detecting systemB. a wheelhouseC. a cargo compartmentD. a crew's cabin94. The function of the smoke sampling system is_____.A. to analyze smoke componentsB. to detect fire in the early stageC. to prevent the wheelhouse from catching a fireD. to ventilate each cargo compartment95. According to this paragraph, which of the following statements is true?A. The smoke sampling system consists of the CO2 fire extinguishing installation and smoke detecting cabinet.B. The smoke detecting cabinet is located on the wheelhouse roof.C. The suction fan draws samples of the air from cargo spaces.D. Samples of the air flow into the detecting cabinet at regular intervals.96. Which of the following devices does the smoke sampling system consist of?(1) fire extinguishing installation; (2) smoke detecting chamber; (3) wheelhouse; (4) cargo compartment; (5) suction fan; (6) diverting valveA. (1), (2), (5)B. (2), (4), (5)C. (3), (4), (6)D. (2),(5), (6)1002级轮机英语期末考试（B）考试班级：1002轮机2.3.4.5班。
轮机英语测试卷
《轮机英语》测试卷（本试卷卷面总分100分，及格分为60分，考试时间为100分钟）答题说明：请选择一个最合适的答案，并将该答案按答题卡要求，在其相应位置上用2B 铅笔涂黑。
第1题至100题，每题1分。
单项选择题：1. If an auxiliary diesel engine does not shut off, the trouble may beA. leaky fuel injectorsB. low firing pressureC. high firing pressureD. seizure of pistons2. If an auxiliary diesel engine stalls frequently , the main cause may be _____________.A. faulty ftiel injection equipmentB. excessive crankshaft clearanceC. an incorrectly assembled governor idle springD. high exhaust back pressure from one cylinder3. If the engine does not start on air, it may be due to _____________.A. low compression of the fuel pumpsB. incorrect timing of fuel pumpsC. the starting air valves stuckD. air-locks in fuel oil pipeline4. If the engine does start on air, but combustion does not immediately begin, the causemay be__________.A. failure of the fuel pumpsB. starting air pressure too lowC. stop valve in air line closedD. the turning gear still engaged5. In _____________ the incoming air is directed upwards, pushing the exhaust gases before itand then the exhaust gases travel down.A. loop scavengingB. cross scavengingC. uniflow scavengingD. supercharging6. In _____________ the incoming air passes over the piston crown then rises towards thecylinder head. The exhaust gases are forced before the air passing down and out ofexhaust parts located just above the inlet ports.A. loop scavengingB. cross scavengingC. uniflow scavengingD. supercharging7. In an oil cooler circulated by sea water, the oil is at a larger pressure, the result being thatany leak in the cooler will mean a loss of _____________.A. oilB. sea waterC. refrigerantD. fresh water8 .In an ordinary diesel engine the fuel injection begins _____________.A. after TDCB. before TDCC. after BDCD. before BDC9. On opposite ends of a single shaft of a turboblower are a gas driven _____________ and aair compressor, which are sealed each other.A. charge air receiverB. scavenging air beltC. turbineD. air cooler10. On the top of the cylinder is mounted the cylinder cover which is pressed onto _________of the cylinder liner by means of nuts and studs.A. the camshaftB. the flangeC. the ridgeD. the bulge11. Sealing between the crankcase and scavenging air boxes for a two-stroke diesel engine isachieved by means of _____________.A. the connecting rod stuffing boxesB. the rings in the stuffing boxesC. the sealing rings of pistonD. the scraper rings of piston12. Sediment collects in a tubular purifier _____________.A. on top coverB. on sides of bowlC. in drain line on the discsD. on the discs13. The _____________ chamber is enclosed between the cylinder head and piston.A. lubricationB. injectionC. coolingD. combustion14. The _____________ or balance tank collects the re-circulated fuel oil.A. bufferB. sumpC. bilgeD. overflowing15．The crank pin journal is provided with large bores for _____________.A. lubricationB. coolingC. balancing purposeD. ventilation16．The crank throws are displaced from _____________ to obtained the same number of degrees between the different crank throws.A. one anotherB. the otherC. each otherD. each others17．The crankshaft is of the semi built type, with the journal _____________ the forged or cast steel crank throws.A. shrunk intoB. expanded intoC. extended intoD. designated into18。
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《轮机英语》B卷姓名：成绩：单项选择题（每题2分共100分）一、单项选择题1.The ______engine is used for alternators and some times for main propulsion with a gearboxto provide a propeller of between 90 to 120 rpm.A. four-strokeB. two-strokeC. slow speedD. reversible2.The discharge flow of a reciprocating pump is ______.A. steadyB. in pulsationC. continuousD. large3.The cetane number of a diesel fuel oil indicates its ______.A. viscosityB. acid contentC. heating valueD. ignition quality4.Always ensure that the turning gear is______, even at the quay, the wave from other shipsmay turn the propeller and thus the engine.A. disengagedB. engagedC. assembledD. disassembled5.Camshafts are usually driven by timing gears or ______.A. push rodsB. chain drivesC. rocker armsD. flywheels6.The cylinder oil is pumped into the cylinder (via non-return valves) when the piston ringspass the lubricating orifices, during______.A. the upward strokeB. the downward strokeC. the power strokeD. the suction stroke7.The total starting air capacity required for reversible main engines is to be sufficient for aleast ______.A. six consecutive(连续的) startsB. eight consecutive startsC. ten consecutive startsD. twelve consecutive starts8.A dirty diesel engine oil filter element can best be detected by ______.A. visual inspection of the elementsB. the pressure drop across the filterC. high lube oil sump temperatureD. decrease in oil viscosity from the filter9.Before a marine diesel engine is started the cylinders and pistons must be ______.A. cooled to appropriate temperatureB. warmed up gradually to appropriate temperatureC. opened up and renewedD. ground and polished10.A controllable pitch propeller on a diesel driven vessel eliminates the need for ______.A. friction clutchesB. disconnect clutchesC. reversing gearsD. reduction gears11.The maximum pressure developed by a waste heat boiler is determined by the main engineexhaust ______.A. gas compositionB. gas temperatureC. pressureD. timing12.______continuously extract the crankcase atmosphere, via a pipe system, and move it past asensitive and accurate opacity (不透明)measuring track.A. The oil mist detectorsB. The smoke detectorsC. An oily water monitorD. Oil discharge monitoring and controlling system13.The water in a steaming auxiliary boiler should be tested daily for ______.A. dissolved oxygenB. chloridesC. sludgeD. dissolved nitrogen14.A firebox explosion in an automatically fired auxiliary boiler may be the result of ______.A. excessive purging before lighting offB. insufficient trail for ignition periodC. a faulty transformer in the ignition circuitD. insufficient purging after lighting off15.A feed pump for an auxiliary boiler might lose suction if the ______.A. boiler water level is lowB. feed-water is too hotC. boiler steam demand is lowD. feed-water is too cold16.The gear and screw pumps are classified as______.A. variable stroke pumpsB. multistage pumpsC. positive displacement pumpsD. triple-ported pumps17.The pressure of a liquid leaving the pump can be referred to as the ______.A. total headB. discharge headC. net positive suction headD. suction head18.Which of the valves listed will be cycled from fully open to fully closed when the handle isturned 90 degree?A. A rising stem gate valveB. A globe stop valveC. A check valveD. A butterflyvalve19.A pump shaft that is bent or distorted should normally be ______.A. repaired by a suitable welding processB. straightened by applying heat and torsionC. reconditioned by metallizing and machiningD. replaced with a satisfactory spare20.A centrifugal pump may fail to deliver water when first started if the ______.A. water seal pipe is pluggedB. pump is not primedC. seal ring is improperly locatedD. impeller is flooded21.Which of the following conditions must exist for heat to flow from one object to another?A. The two objects must be in physical contact.B. The two objects must be the same size.C. There must be an existing temperature differential.D. There must be an existing weight differential.22.The dew point of air is reached when the wet bulb temperature is ______.A. twice the dry bulb temperatureB. 10℃ above the dry bulb temperatureC. 5℃ above the dry bulb temperatureD. equal to the dry bulb temperature23.If air at 95 ℃ dry bulb temperature and 50% relative humidity is conditioned to 75 ℃ dry bulbtemperature and 50% relative humidity, it is an example of ______.A. cooling onlyB. cooling andhumidifyingC. cooling and dehumidifyingD. adiabatic(绝热的) cooling24.In order to achieve greater dehumidification(除湿) with an air conditioning system, youshould ______. I. reduce the cooling coil temperature II. increase the re-heater temperatureA. I onlyB. II onlyC. Both I and IID. Neither I nor II25.Oily water separators are used to ensure that ships don't discharge oil when pumping out______.A. ballast waterB. boiler waterC. bilge waterD.sewage water26.When started, a complete oily water separating unit is first filled______. The oily watermixture is then pumped through the inlet pipe into the coarse separating compartment.A. with dirty waterB. with clean waterC. by oily waterD. by mixedwater27.Which is the pollution prevention equipment?A. booster pumpB. evaporatorC. incineratorD.cooler28.The oil sludge is burnt in the ______onboard. I’ll show you the ashes.A. boilerB. main engineC. auxiliary engineD.incinerator29.Most marine biological sewage treatment plants consist of all the following statements except______.A. aeration tanksB. settling tanksC. disinfection agentD. anaerobicbacteria (厌氧菌)30.Great care is dedicated to the removal of _____ from the scavenge air.A. gravityB. viscosityC. densityD.humidity31.Dirty oil must be _____ before being used again.A. mixed with clean oilB. purifiedC. heatedD. strained32.When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stackand ___ the sea water passing through the tubes.A. disposeB. dissolveC. heatD. dissipates33.When securing a flash-type evaporator for an extended period of time, you should ______.A. fill the unit with saltwaterB. fill the unit with descaling compoundC. completely drain the unitD. tightly seal the unit to exclude air34.Among the basic categories of equipment, which of the following are used to allow thehydraulic energy to be controlled?A. hydraulic pumpsB. valvesC. hydraulic cylindersD. hydraulicmotors35.Positive displacement, helical gear(斜齿轮) pumps are well suited for pumping oil because______.A. stuffing boxes eliminate the leakage problems usually associated with other gear pumpsB. it is not necessary to closely maintain design clearances with this pumpC. they are essentially self-priming and produce a high suction liftD. these pumps are designed with extreme tooth angles36.The oil in a cargo winch gear box should be sampled periodically(周期性地) to ______.A. prevent the gear box from leakingB. prevent the oil from becoming inflammable(易燃的)C. make sure it has not become contaminated(污染)D. make sure the motor bearings are lubricated37.If an anchor windlass has been idle for some time, you should ______.A. repack all valve stemsB. lubricate it prior to useC. replace the foundation boltsD. balance the warping heads38.A mooring winch should be equipped with mechanical brakes capable of holding ______.A. half the breaking strength of the mooring lineB. the full breaking strength of the mooring lineC. the maximum expected tension(张力) of the mooring lineD. 50% over the working tension of the mooring line39.Hydraulic cranes must be properly warmed-up before being operated because ______.A. warm-up allows the hydraulic system to become charged with oilB. warm-up allows the relief valves to be properly testedC. hydraulic strainers operate only during the warm-up periodD. hydraulic fluid must be at the proper viscosity40.The current flowing first in one direction and then in another is called ____ current.A. a rushB. an alternatingC. a directD. an exciting41.The frequency of an alternator at a given RPM is determined by the ______.A. number of turns of wire in the armature coilB. number of magnetic polesC. strength of the magnets usedD. output voltage42.While paralleling two AC generators using synchronizing(同步的) lamps only, both lampswill go dark when the generators are ______.A. running at the same speedB. groundedC. of the same polarity(极性)D. in phase43.The load sharing characteristics of two diesel generators operating in parallel are mostlydependent on their governor ______.A. load limit settingsB. idle speed settingsC. speed limit settingsD. speed droop settings44.Electric insulation is made of organic substances and so gradually ______with age.A. deterioratesB. increasesC. are fouledD. becomes better45.The main generators are connected to ______.A. distribution boardsB. section boardsC. emergency switch boardsD. main switch boards46.The operation of _____ two alternators requires the voltages to be equal and also in phase.A. controlB. series-mountingC. runningD. paralleling47.______is a machine by which electrical energy is transformed into mechanical energy.A. An alternatorB. An electric motorC. A diesel engineD. A main switchboard48.A ground in an electrical circuit outside the engine room ______.A. cannot be detected under normal conditionsB. is of no consequence to engineering personnelC. is indicated at the branch circuit breaker panelD. is indicated by the ground detecting lamps on the main switchboard49.Time delayed or delayed action-type fuses are designed to ______.A. prevent grounds in branch circuitsB. prevent opens in motor circuitsC. permit momentary overloads without meltingD. guard lighting and electronic circuits50.When voltage and current developed in an AC circuit reach their peak values at the same time,the power factor is ______.A. laggingB. leadingC. maximumD. minimum答案。