三副航海英语习题讲解9

2017航海英语复习九
Key word 34: Fire fighting （95）
B1617. All of the following are part of the fire triangle EXCEPT ______.
A. fuel
B. electricity
C. oxygen
D. heat
【知识点】燃烧三要素
【解析】不是燃烧三角形一部分的是：电气。

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B1727. It is used for extinguishing fires because it reduces __in the air to the point where combustion stops.
A. the concentration of oxygen
B. the temperature
C. the fuel
D. the heat
D1731. Carbon dioxide flooding system is used for extinguishing fires because it reduces the concentration of oxygen in the air to______
A .flashing point
B .combustion point C. auto-ignition point D. lower explosive limit
C2092. Except in rare cases, it is impossible to extinguish a shipboard fire by ______.
A. removing the heat
B. removing the oxygen
C. removing the fuel
D. interrupting the chain reaction
A2133. Oil fires are best extinguished by ______.
A. cutting off the supply of oxygen
B. removing the fuel
C. cooling below the ignition temperature
D. spraying with water
B2189. For most products, the fire will die out when the oxygen content is reduced to ________.
A.10%
B.12%
C.15%
D.21%
【解析】对多数物质而言，氧气含量降至12%，火将熄灭。

（非常纠结）
C1465. It is necessary to secure the forced ventilation to a compartment where there is a fire to __.
A. allow the exhaust fans to remove smoke
B .extinguish the fire by carbon monoxide smothering
C. prevent additional oxygen from reaching the fire
D. protect fire fighting personnel from smoke
【解析】对一间失火的舱室，需要关闭机械通风，目的是防止有更多的氧气进入。

B1585. A galley grease fire would be classified as which class of fire?
A. A
B. B
C. C
D. D
【知识点】火灾的分类
【解析】厨房油脂失火属于B类火。

B1609. Oily rags stored in a pile that is open to the atmosphere are a hazard because they may __.
A .deteriorate and give off noxious gases B. spontaneously heat and catch fire
C. attract lice and other vermin and serve as a breeding ground
D. none of the above
【知识点】燃烧类型——自燃
【解析】在有开口的桶中存放带油的抹布是危险的，因为可能自热并引发火灾。

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A2093. Spontaneous combustion is most likely to occur in ________.
A. Rags soaked in linseed oil--浸湿亚麻子油的破布
B. Overloaded electrical circuits—过载的线路
C. Dirty swabs and cleaning gear—脏的拖把和清洁设备
D. Partially loaded fuel tanks
【解析】自燃最有可能发生的是：浸油的破布。

B2109. Spontaneous ignition can result from______.
A. an unprotected droplight bulb
B. careless disposal or storage of material
C. smoking in bed
D. worn electrical wires on power tools
C2112. A fire starting by spontaneous combustion can be expected in which condition?
A. Paints, varnish, or other liquid flammables are stowed in a dry stores locker.
B. Inert cargoes such as pig iron are loaded in a wet condition.
C. Oily rags are stowed in a metal pail.
D. Clean mattresses are stored in contact with an electric light bulb.
B2222. Accumulations of oily rags should be ___.
A. kept in nonmetal containers
B. discarded as soon as possible
C. cleaned thoroughly for reuse
D. kept in the paint locker
【解析】堆积在一起的含油破布应尽快丢弃。

B2420. Oily rags stored in a pile that is open to the atmosphere are a hazard because they may____.
A. deteriorate and give off noxious gasses
B. spontaneously heat and catch fire
C. attract lice and other vermin and serve as a breeding ground
D. None of the above
A2196. What is it called when it is possible to ignite the vapor above the oil?
A. flash point
B. boiling point
C. ignition point
D. pour point
【知识点】燃烧类型
【解析】油上面的蒸汽能燃烧的温度是闪点。

D2105. Fire may be spread by which means?
A. Conduction of heat to adjacent surfaces
B. Direct radiation
C. Convection
D. All of the above
【知识点】火灾的传播方式
【解析】火灾传播方式：传导、辐射、对流。

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C1689. Which of the following materials has the best heat conduction?
A. gas
B. liquid
C. metal
D. wood
【解析】最能导热的是金属。

A2102. Convection spreads a fire by ______.
A. heated gases flowing through ventilation systems
B. the transfer of heat across an unobstructed space
C. burning liquids flowing into another space
D. transmitting the heat of a fire through the ship’s metal
【解析】对流传播火灾的方式：热的空气通过通风系统流动。

A2187. What type of fire detectors is the first to go off in case of a fire?
A. smoke detector
B. flame detector
C. heat detector
D. gas detector
【知识点】火灾探测与报警
【解析】最初发现火灾的探测器：烟雾探测器
D1490. A definite advantage of using water as a fire extinguishing agent is its characteristic of __.
A. alternate expansion and contraction as water in a liquid state becomes a vapor
B. absorption of smoke and gases as water is converted from a liquid to a vapor
C. rapid contraction as water is converted from a liquid to a vapor
D. rapid expansion as water absorbs heat and changes to steam
【知识点】灭火剂——水
【解析】水作为灭火剂的优点是使用其特点之：当水吸热并变成蒸汽时迅速膨胀。

D1597. An extinguishing agent which effectively cools, dilutes combustible vapors, removes oxygen, and provides a heat and smoke screen is ______.
A.carbon dioxide
B. Halon 1301
C. dry chemical
D. water fog
【知识点】灭火剂——水
【解析】能够有效的冷却、稀释可燃蒸汽、除去氧气，并且提供防火和烟雾屏障的灭火剂是水。

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C1692. The major use of water in fighting fires is to ______.
A. Suffocate the fire
B. Absorb the oxygen supporting the fire
C. Act as a cooling agent
D. Wash the fire away
D1728.___ is main emergency fire system in all merchant ships.
A. co2 system
B. foam system
C. dry powder system
D. water supply system
A2122. Of all the extinguishing agents listed below, which one has the greatest capacity for heat absorption?
A. Water fog
B. Carbon dioxide
C. Dry chemical
D. Solid stream of water
D1472. Firefighting foam is only effective when the foam _____.
A. penetrates to the bottom of the fire
B. is kept saturated with low-velocity water fog
C. mixes with the burning fuel oil
D. completely covers the top of the burning liquid
【知识点】灭火剂——泡沫
【解析】泡沫灭火剂只有当全部覆盖到燃烧液体的上面时才有效。

B1498. Foam-type portable fire extinguishers are most useful in combating fires involving ___.
A. solid materials such as wood or bales of fiber
B. inflammable liquids
C. electrical equipment
D. metallic solids
【知识点】灭火剂——泡沫
【解析】手提泡沫灭火器扑灭易燃液体火最有效。

相关题目
B1664. A foam-type portable fire extinguisher would be most useful in combating a fire in ___.
A. solid materials such as wood or bales of fiber
B. flammable liquids
C. a piece of electrical equipment
D. combustible metallic solid
B1582. A foam-type portable fire extinguisher is most useful in fighting a fire in ______.
A. generators
B. oil drums
C. the bridge controls
D. combustible metals
B1587. A large oil fire on the deck of a ship can be fought most effectively with ______.
A. dry chemical
B. foam
C. high-velocity fog
D. water (cartridge-operated)、
A1500. Foam is a very effective smothering agent and ______.
A. it provides cooling as a secondary effect
B. works well on extinguishing electrical fires
C. can be used to combat combustible metal fires
D. All of the above
【知识点】灭火剂——泡沫
【解析】泡沫是一种非常有效的窒息剂，并且还有冷却的辅助效果。

相关题目
C1505. How does foam extinguish an oil fire?
A. By cooling the oil below the ignition temperature
B. By removing the fuel source from the fire
C. By excluding the oxygen from the fire
D. By increasing the weight of the oil
A1669. Foam extinguishes a fire by ______.
A. shutting off the air supply
B. cooling the fuel to below ignition temperature
C. dispersing the fuel
D. removing the source of ignition
A1603. As an extinguishing agent, foam ______.
A. conducts electricity
B. should be directed at the base of the fire
C. is most effective on burning gases which are flowing
D. extinguishes by cooling oil fires below ignition temperature
【知识点】灭火剂——泡沫
【解析】作为一种灭火剂，泡沫导电。

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D1604. One of the limitations of foam as an extinguishing agent is that foam ______.
A. cannot be made with salt water
B. is heavier than oil and sinks below its surface
C. is corrosive and a hazard to fire fighters
D. conducts electricity
C1476. Which of the following is(are) an advantage of a dry chemical extinguisher over a carbon dioxide extinguisher? The dry chemical extinguisher ______.①Has a greater range. ②Provides a heat shield for the operator.
A. ①only
B. ②only
C. Both ①and ②
D. Neither ①nor ②
【知识点】灭火剂的作用——对比
【解析】干粉灭火剂优于二氧化碳灭火剂的是：射程更远；能为灭火员提供隔热保护。

相关题目
A1596. An advantage of a dry chemical over a carbon dioxide fire extinguisher is its ______.
A. greater range
B. effectiveness on all types of fires
C. cleanliness
D. All of the above
C1605. As compared to carbon dioxide, dry chemical has which advantage?
A. Cleaner
B. Effective on metal fires
C. Greater range
D. More cooling effect
D1575. ______, as the chemical extinguisher agent, should be used for an electric fire.
A. dry chemical or foam
B. foam or soda acid
C. carbon dioxide or foam
D. carbon dioxide or dry chemical
【知识点】灭火剂
【解析】二氧化碳和化学干粉，作为化学灭火剂，可用于扑灭电气火。

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D1600. Any extinguishing agent used on a class c fire must have which important property?
A. cooling ability
B. leaves no residue
C. penetrating power
D. non-conductivity
B2162. What method of extinguishing fire in a hatch is the best to minimize damages to the cargoes?
A. Foam
B. CO2
C. Water
D. All of the above
【解析】货舱内失火时，对货物损失最小的灭火剂是二氧化碳
B2195. A frying pan catches fire in the galley, which extinguishing agents shall you use?
A. Water
B. CO2 or powder
C. Foam
D. CO2 only
【解析】厨房煎锅失火，应使用二氧化碳或干粉灭火剂。

A1618. All portable fire extinguishers must be capable of being ______.
A. carried by hand to a fire
B. carried or rolled to a fire
C. recharged in the field
D. used on class “B” fire
【知识点】灭火器
【解析】所有便携式灭火器必须能够手提到火场。

D1655. How do you operate a portable CO2 fire extinguisher?
A. Point the horn down.
B. Turn cylinder upside-down.
C. Break the rupture disc.
D. Pull pin, squeeze grip.
【知识点】灭火器的使用——二氧化碳
【解析】施放二氧化碳灭火器：取下销子、压下把手。

相关题目
C1501. In order to discharge a CO2 portable fire extinguisher, the operator must FIRST ______.
A. invert the CO2 extinguisher
B. squeeze the two trigger handles together
C. remove the locking pin
D. open the discharge valve
B1578. A CO2 portable extinguisher is annually checked by ______.
A. reading the gage pressure
B. weighing the extinguisher
C. discharging a small amount of CO2
D. seeing if the seal has been broken
【知识点】灭火器的检查保养——二氧化碳
【解析】CO2灭火器每年用称重的方法进行检查。

相关题目
B2282. On a vessel, a CO2 extinguisher is checked by ______.
A. reading the gage pressure
B. weighing the extinguisher
C. discharging a small amount of CO2
D. seeing if the seal has been broken
C1577. A CO2 extinguisher on a ship which has lost 10% of its charge must be_______
A . used at the earliest opportunity B. hydro-tested
C. recharged
D. weighing again in one month
【知识点】灭火器的检查保养——二氧化碳
【解析】CO2灭火器损失10%的重量时，应重新灌装。

C1613. On a ship, firefighting equipment must be inspected once every ____.
A. three months
B. six months
C. twelve months
D. eighteen months
【知识点】消防设备的检查
【解析】船上消防设备应每隔12个月进行一次检查。

B1657. A carbon dioxide fire extinguisher should be recharged ______.
A. at least annually
B. whenever it is below its required weight
C. only if the extinguisher has been used
D. before every safety inspection
【知识点】灭火器的充装
【解析】二氧化碳灭火器应在其低于规定重量时重新充装。

相关题目
D1699. After using a CO2 portable extinguisher, it should be ______
A. put back in service if some CO2 remains
B. hydrostatically tested
C. retagged
D. Recharged
B1589. A portable dry chemical fire extinguisher discharges by ______.
A. gravity when the extinguisher is turned upside down
B. pressure from a small CO2 cartridge on the extinguisher
C. air pressure from the hand pump attached to the extinguisher
D. pressure from the reaction when water is mixed with the chemical
【知识点】灭火器的使用——干粉
【解析】手提式化学干粉灭火器通过灭火器上的二氧化碳小钢瓶的压力来释放。

D1480. Portable CO2 fire extinguishers should NOT be used to inert a space containing flammable liquids due to the danger of ________.
A. The CO2 being inhaled by personnel
B. re-flash of burning liquids
C. vapor condensation on the extinguisher
D. the discharge causing a static spark
【知识点】惰化
【解析】二氧化碳灭火器不能用于惰化装有易燃液体的舱室，原因是其释放时会产生火花。

A1572. A cabinet or space containing the controls or valves for the fixed firefighting system must be_____
A. posted with instructions on the operation of the system
B. ventilated and equipped with explosion-proof switches
C. painted with red and black diagonal stripes
D. equipped with a battery powered source of emergency lighting
【知识点】固定灭火系统
【解析】装有固定灭火系统的控制开关和阀门的舱室，应在操作系统旁贴有操作指南。

C1637. Where shall the key to CO2 room be kept?
A. in master’s cabin
B. in third officer’s cabin
C. in a break-glass-type enclosure conspicuously located adjacent to the room
D. in a locked locker conspicuously located adjacent to the room
【知识点】固定灭火系统
【解析】二氧化碳间的钥匙应保存在：房间旁边显眼处，易碎玻璃做成的箱子里。

D1502. Before using a fixed CO2 system to fight an engine room fire, you must ______.
A. secure the engine room ventilation
B. secure the machinery in the engine room
C. evacuate all engine room personnel
D. All of the above
【知识点】二氧化碳固定灭火系统
【解析】使用固定二氧化碳灭火系统扑灭机舱火灾，必须关闭机舱通风、关闭机舱内的机器、撤出机舱内的人员。

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C1486. Large volumes of carbon dioxide are safe and effective for fighting fires in enclosed spaces, such as in
a pumproom, provided that the ______.
A. persons in the space wear gas masks
B. persons in the space wear damp cloths over their mouths and nostrils
C. ventilation system is secured and all persons leave the space
D. ventilation system is kept operating
【解析】在密闭空间，如泵机房，使用大量二氧化碳灭火是安全有效的，前提是关闭了通风并且人员撤离。

C1646. What kind of fixed extinguished plant is installed in an oil tankers engine room and pump room?
A. powder plant
B. foam plant
C. co2 plant
D. water spray plant
B2140. Fire in an engine compartment is best extinguished with carbon dioxide gas (C02) and by _____.
A. closing the compartment except for the ventilators
B. completely closing the compartment
C. leaving the compartment open to the air
D. increasing the air flow to the compartment by blowers
A1573.No outlet on a fire hydrant may point above the horizontal in order to ________
A. avoid kinking the hose
B. avoid personal injury during connection
C. make connecting easier
D. prevent spray on electrical equipment
【知识点】水灭火系统
【解析】消防栓的出水口没有朝上的，其目的是防止水龙带缠绕。

B1576. A branch line valve of a fire extinguishing system on a ship must be marked with the _
A. maximum pressure allowed at that branch
B. name of the space or spaces which it serves
C. date of the last maintenance inspection
D. pressure needed to maintain an effective stream at that point
【知识点】固定灭火系统
【解析】固定灭火系统的分支管路应标记有：该管路覆盖的区域名称。

D1579. A combination or all-purpose nozzle produces ______.
A. low-velocity fog only
B. a solid stream only
C. a solid stream and foam
D. a solid stream and fog
【知识点】水灭火系统
【解析】组合水枪或多功能水枪能提供水柱和水雾。

across the ship.
A. fire axes
B. portable extinguishers
C. fire hydrants
D. CO2 gas
【知识点】水灭火系统
【解析】船舶水灭火系统由许多位于船舶特定位置的消防栓组成。

A1726. Though sea water is the best mode of fighting fire, the main emergency fire fighting system can only be used on fires of ___
A. type A
B. type B
C. TYPE C
D. type D
【知识点】水灭火系统
【解析】尽管海水是最佳灭火方式，应急水灭火系统只能用于扑灭A类火。

B1496. A device fitted over the discharge opening on a relief valve consisting of one or two woven wire fabrics is called a ______.
A. flame stopper
B. flame screen
C. flame filter
D. flame restrictor
【知识点】防火装置
【解析】安装于释放阀的排放口上，由一或两道钢丝网组成的装置是火星防护网。

C1499. Flame screens are used to ______.
A. contain flammable fumes
B. protect firefighters from flames
C. prevent flames from entering tanks
D. keep flame and sparks from getting out of an engine’s exhaust system
【知识点】防火装置
【解析】火星防护网用于防止火星进入舱内。

相关题目
C2233. How should cargo tank hatches be protected when the ullage opening is open and the tank NOT gas free?
A. With gooseneck vents
B. With warning signs
C. With flame screens
D. With pressure-vacuum relief valves
C1497. A spark-arrestor ______.
A. keeps sparks from falling into an open tank
B. secures covers on ullage openings
C. prevents sparks from getting out of an engine’s exhaust system
D. grounds static electricity
【知识点】防火装置
【解析】火花熄灭器用于防止火星从机器排气系统中飞出。

A1517. An oxygen indicator can be used to determine if there is ______.
A. sufficient oxygen in a compartment to support life
B. combustible gases present
C. hydrogen gases present
D. All of the above
【知识点】测氧仪
【解析】测氧仪用于测量并确定舱室内是否有足够支撑生命的氧气。

B1504. Each ship having an inert gas system must have a portable instrument to measure concentrations of hydrocarbon vapor in inert atmospheres and also to measure ______.
A. nitrogen
B. oxygen
C. carbon dioxide
D. water vapor
【知识点】可燃气体测量仪
【解析】每艘装有惰性气体系统的船必须配有手提设备用于测量惰化环境中烃蒸汽的含量，同时测量氧气含量。

A1638.T he fireman’s outfit consists of___.
A .safety lamp, protective clothing, rigid helmet, breathing apparatus
B .emergency escape breathing device, fire damper, extinguishers
C. firefighting equipment, portable extinguishers, fire dampers
D. fire hoses, fire nozzles, fire hydrants, fire pumps
【知识点】消防员装备
【解析】消防员装备的组成：安全灯、防护服、头盔、呼吸器。

相关题目
B1614. On cargo and miscellaneous vessels, what is not a required part of the fireman’s outfit?
A. self-contained breathing apparatus with a lifeline attached
B. combustible gas indicator
C. rigid helmet, boots, and gloves
D. flame safety lamp
【解析】多用途船上，消防员装备不包括：可燃气体测试仪。

C1626. Each fireman’s outfit and its spare equipmen t on a vessel must be stowed ______.
A. in a locked cabinet in the machinery space
B. in an unlocked cabinet in the machinery space
C. in a separate and accessible location
D. at a fire hydrant location
C1616. Self-contained breathing apparatus is used to ______.
A. make underwater repairs to barges
B. determine if the air in a tank is safe for men
C. enter areas that may contain dangerous fumes or lack oxygen
D. resuscitate an unconscious person
【知识点】消防员装备
【解析】自给式呼吸器用于：进入可能含有危险蒸汽或缺氧的环境中。

C1560. After putting on a self-contained breathing apparatus, you open the air supply and hear a continuous ringing of a bell. What does this mean?
A. The unit is working properly
B. The face mask is not sealed properly
C. The air bottle needs to be refilled
D. The air supply hose has a leak
【知识点】自给式呼吸器
【解析】穿戴好自给式呼吸器后，开启供气阀，听到连续的声响，表示：空气瓶需重新灌装了。

C1670. What is the minimum period of the time that the air supply for a self-contained breathing apparatus required to last?
A. 10 minutes
B. 20 minutes
C. 30 minutes
D. 90 minutes
【知识点】自给式呼吸器
【解析】自给式呼吸器的空气能维持30分钟。

相关题目
B2188. According to SOLAS, the breathing air apparatus that must be onboard shall have sufficient capacity for how many minutes of operation?
A.20
B.30
C.45
D.60
A1615. The connection facilities for the international shore connection must be located to provide access __.
A .on either side of the vessel B. as close as possible to the house
C. on the main deck
D. on each level of the accommodation space
【知识点】国际通岸接头
【解析】国际通岸接头的连接设备在船舶两舷都应安装。

相关题目
B1730. The standard sized flanges provided at every strategically positioned fire hydrant on board are known as _______
A. isolating valve B .international shore connection C .relief valve D .fire control plan
B1640. What kind of information does the fire plan contain?
A .fire alarm signal, fire instruction and your assignment
B. location of firefighting equipment on board
C. how to use firefighting equipment on board
D. information on how handle different types of fires
【知识点】防火控制图
【解析】防火控制图上包括：消防设备的位置。

C1643. What is the meaning of UEL?
A. upper exposure level
B. upper explosion level
C. upper explosive level
D. upper evaporation level
【知识点】消防术语
【解析】爆炸上限
相关题目
C1645. What is the meaning of LEL?
A. low evaporation limit
B. lower exposure limit
C. lower explosive limit
D. low explosion level
C1491. Which firefighting method is an example of an indirect attack on a fire ?
A. Bouncing a straight stream of water off the overhead to create spray effect
B. Spraying foam on a bulkhead and letting it flow down and over a pool of burning oil
C. Flooding a paint locker with CO2 and sealing the compartment
D. Cooling adjacent bulkheads with water to prevent the spread of the fire by conduction
【知识点】灭火方法——间接灭火
【解析】间接灭火的例子是：向油漆间施放二氧化碳，并封舱。

C1503. A fire of escaping liquefied flammable gas is best extinguished by ______.
A. cooling the gas below the ignition point
B. cutting off the supply of oxygen
C. stopping the flow of gas
D. interrupting the chain reaction
【知识点】灭火方法和程序
【解析】泄漏气体造成的火灾，最佳扑灭方法是堵住不再漏气。

相关题目
B2090. Generally, the first action in extinguishing an LPG fire caused by escaping gas is to ________.
A. sweep flames away with water spray
B. shut off the leak
C. use a chemical foam fire extinguisher
D. call the local fire department
B1580. A fire starts on your vessel while refueling. You should FIRST ______.
A. stop the ventilation
B. sound the general alarm
C. determine the source of the fire
D. attempt to extinguish the fire
【知识点】灭火程序
【解析】加油过程中失火，应首先报警。

A1672. You notice smoke coming from an open laundry room doorway. After activating the fire alarm，which of the following would you do FIRST?
A. Attempt to determine what is burning.
B. Acquire the nearest self contained breathing apparatus.
C. Break out the nearest fire hose.
D. Wait for the fire team to arrive and assist as directed.
【知识点】灭火程序
【解析】你注意到开着门的厨房有烟冒出，报警后，应首先：试着确定是什么在燃烧。

A1695. You are on watch at sea at night and a fire breaks out in #3 hold. What should be done IMMEDIATEL Y?
A. Shut down the cargo hold ventilation.
B. Proceed to the space and determine the extent of the fire.
C. Flood the space with C02 from the fixed fire fighting system.
D. Cool the deck to contain the fire.
【知识点】灭火程序
【解析】夜晚，你在海上值班，3号货舱失火，应立即：关闭货舱通风。

相关题目
C1704. You are on watch at night in port and discover a fire in No.1 hatch. Which action should you take FIRST?
A. Advise the Chief Mate and Master.
B. Release carbon dioxide into the hatch.
C. Sound the general alarm.
D. Lead a fire hose to the hatch.
【解析】在夜间，你在港内值班，并发现1号货舱失火，应首先：鸣放警报。

D1583. A fuel line breaks，sprays fuel on the hot exhaust manifold，and catches fire. Your FIRST action should be to ______.
A. batten down the engine room
B. start the fire pump
C. apply carbon dioxide to the fire
D. shut off the fuel supply
【知识点】灭火程序
【解析】燃油管破裂，燃油喷在在高温的排气主管上并产生火灾，应首先：关闭燃油供应。

B1594. After extinguishing a fire with CO2, it is advisable to ______.
A. use all CO2 available to cool the surrounding area
B. stand by with water or other agents
C. thoroughly ventilate the space of CO2
D. jettison all burning materials
【知识点】灭火程序
【解析】使用二氧化碳进行灭火后，建议：使用水或其他灭火剂待命。

B1595.After extinguishing a paint locker fire using the fixed CO2 system, the next action is to have the space ___
A. opened and burned material removed
B. left closed with vents off until all boundaries are cool
C. checked for oxygen content
D. doused with water to prevent re-flash
【知识点】灭火程序
【解析】对油漆间使用固定二氧化碳灭火系统进行灭火后，下一步行动是保持该区域关闭通风直到外围冷却了。

相关题目
D1707. If heavy smoke is coming from the paint locker, the FIRST firefighting response should be to ____.
A. release the CO2 flooding system
B. open the door to evaluate the extent of the fire
C. enter and use a portable extinguisher
D. secure the ventilation
C1706. Your vessel is equipped with a fixed CO2 system and a fire main system．In the event of an electrical fire in the engine room, what is the correct procedure for fighting the fire?
A．Use the CO2 system and evacuate the engine room
B．Use the fire main system and evacuate the engine room
C．Evacuate the engine room and use the CO2 system
D．Evacuate the engine room and use the fire main system
【知识点】灭火程序
【解析】你船配备有固定二氧化碳灭火系统和水灭火系统，当机舱电气失火时，正确的灭火程序是：撤离机舱，使用二氧化碳系统。

C1598. An important step in fighting any electrical fire is to ______.
A. stop ventilation
B. stop the vessel
C. de-energize the circuit
D. apply water to extinguish the fire
【知识点】灭火程序
【解析】扑灭电气火的重要一步是切断电路。

D1599. An inert gas system is designed to reduce the possibility of tank explosions by ______.
A. eliminating sparks and fire in the vicinity of cargo tanks
B. removing all hydrocarbon gases from the cargo tanks
C. blanketing cargo tanks with inert foam
D. reducing the oxygen concentration below levels necessary for combustion
【知识点】惰性气体系统
【解析】惰性气体系统设计用于减少油舱爆炸的可能性，方法是将氧气含量降至可燃所必须的含量之下。