机械专业英语试题及答案

教研室主任 （签字） 学院院长（系主

任） （签字）

C. degradation…corrosion

D. corrosion… degradation

12. Most frames _______ cast iron, weld steel, composition, or concrete.

A. are made from

B. are made up of

C. was produced by

D. was consist of

13. Rotating shafts particularly those that run at high speeds, must be designed to avoid

operation

at speeds.

A . low

B .overload C. critical D. hollow

14. Although cast iron is a fairly cheap material, each casting requires a .

A. pattern

B. model

C. mold

D. patent

15. The term is used to describe joints with surface contact, as with a pin surrounded by a hole.

A. high pair

B. low pair

C. surface pair

D. rotary pair

二、完型填空（在每个小题四个备选答案中选出一个正确答案，本大题共15小题，每小题1分，总计15分）

The term shaft usually refers to a relatively long member of round cross section that rotates and transmits power. One or more members such as gears, sprockets, pulleys, and cams are usually (16) to the shaft by means of pins, keys, splines, snap rings, and other devi ces. These latter members are among the “associated parts” considered in this text, as are couplings and universal joint, which serve to (17) the shaft to the source of power or load.

考生注意：考试时间 120 分钟试卷总分 100 分共 5 页第 1 页

Sometimes members like gears and cams are made (28) with shaft, but

more often such members (which also include pulleys, sprockets, etc)are

made separately and then(29) shaft. The portion of the mounted member

in contact with the shaft is the hub. Attachment of the hub to the shaft

is made in variety of ways. A gear can be gripped (30) between a

shoulder on the shaft and a spacer, with torque being transmitted

through a key. The grooves in the shaft and hub into which the key fits

are called keyways.

16、 A) cement B) attached C) connected D) concrete

17、 A) endure B) transmit C) serve D) connect

18、 A) support B) meet C) satisfy D) strong

19、 A) aims B) idler C) terminal D) tomb

20、 A) due to B) weather C) whether D) for

21、 A) elasticity B) torsional C) inertia D)

acceleration

22、 A) subjected B)…connect C) and D) From

23、 A) deeply B) strength C) clearly understand D)

long time

24、 A) identify B) cross C) round D)

lateral

25、 A) lucrative B) objectionable C) attractable D)

terrible

订

线

read as follows.

Engineering design is the process of devising a system, component, or process to meet desired needs. It is decision making process(often iterative),in which the basic sciences, mathematics, and engineering sciences are applied to convert resources optimally to meet a sated objectives and criteria, synthesis, analysis, construction ,testing, and evaluation. The engineering design component of a curriculum must include most of the following features : development of student creativity, use of open-ended problem statement and use of modern design theory and methodology, formulation of design problem statement and specification, consideration of alternative solutions, feasibility considerations, production process, concurrent engineering design, and detailed system descriptions. Further, it is essential to include a variety of realistic constraints such as economic factors, safety, reliability, aesthetics, ethics, and social impact.

31、what’s the main meaning of message (1)?

A) Engineering design is a systematic process B) materials engineer’s main work

C) mechanical engineer’s has good idea D) electrical engineer’ main duty

32、In the author’s opinion, the design process is very complex and should taken into

account many factors, from the message who should NOT join into the design team _______.

A) environmentalists,

B) sociologists

C) engineers

D) Government officials