机电专业英语复习题及答案(最新整理)

机电专业英语期末复习试题

一．选择题

1.If all points in a linkage move in parallel planes the system undergoes plan ar motion and the linkage may be described as a .

A.planar motion

B. planar linkage

C. joints

D. slide

2.Though frame material and design should handle damping,

are sometimes built into frame sections to handle specific problems.

A .beams B. holes C. dampers D. screw

3.The maximum allowable deflection of a shaft determined by critical s peed, gear, or bearing requirements.

A. often

B. must

C. was

D. is usually

4.We will have to to better and better solutions as we generate more in formation.

A. repeat many times

B. iterating

C. iterate

D. try ways

5.If a product configuration is specified and then examined to determ ine whether the performance requirements are met.

A. finally

B. tentatively

C. temporary

D. have been

6.Manufacturing can be defined as the of raw materials into useful prod ucts through the use of the easiest and lest-expensive methods.

A. transformation

B. processing

C. process

D. transforming

7.The planer and knee types of milling machine is because of its flexibi lity.

https://www.wendangku.net/doc/5a2012867.html,ed most commonly

B. most popular

C. the most commonly used

D. mo st powerful

8.As a result, the system will vibrate at the frequency of the force re gardless of the initial conditions or natural frequency of the system.

A. action

B. excitation

C. out

D. act

9.Before two components are assembled together, the relationship between the d imensions of the mating surfaces .

A.must be giving out

B. should printed clearly

C. must be specified D . should be clearly noted

10.The main practical advantage of lower pairs is their better ability to trap lubricant between their surfaces.

A. enveloping

B. mating

C. outer

D. outside

11.The word itself usually refers to the deterioration of metals and cer amics, while similar phenomena in plastics generally called .

A. recrystallization…. corrosion

B. recrystallization…degradation

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 designe

d 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 pa ir

1-5：BCDCB 6-10：ACBCA 11-15 DACAB

二．阅读

1.L assie was a big dog. She was very clever. She was always helping someone.

Once some bad men took some money from an old man. They tied him up with a rope and left hi m on the floor. They kept Lassie in another room. Lassie tried to open the door of the room. But s he couldn’t. There was a large window in the room, but it was too high for Lassie to reach. She pu lled a chair over to window and stood on it. She pushed and pulled and pulled at the window and a t last got it open. With a great jump, she got out.

Lassie came back into the house and found the room where the old man was left. She untied the ro pe round the old man’s arms and legs. Then she helped him out of the house and down the road to the nearest house.

( )1. Lassie was .

A. a baby

B. a cat

C. a dog

D. a girl

( )2. Once some bad men tool some money from .

A. a young man

B. a young woman

C. an old woman

D. an old man

( )3. Lassie the door of the room.

A. didn’t open

B. opened

C. shut

D. didn’t shut

( )4 . untied the old man.

A.A girl

B. A cat

C. A woman

D. Lassie

( )5. caught the bad men.

A. The dog

B. Lassie

C. The policemen

D. The girl

2.M r. George works at the school lost and found. He works very carefully. Every day, when he get s a lost thing, he takes notes about it. There are pens, books, school uniforms, keys, walkmans and many other things in the lost and found. Most of them are the students’. If you lose your things, it’ s easy for you to go to the lost and found for help. But you must tell Mr. George what it is and its c olor and the day when you can’t find it. I think Mr. George is very helpful, and you will be happy when you find the lost there.

( )6 .Who works at the school lost and found?

A. Mr. Brown

B. Mr. King

C. Mr. George

D. Nobody

( )7 .There are things in the lost and found.

A. no

B. few

C. a few

D. many

( )8. Most things Mr. George takes care of are the .

A. boys’

B. girls’

C. students’

D.teachers’

( )9 .If you lose your things, you’d better go to ask .

A. Ben

B. Mr. George

C. your teacher

D. your parents

( )10.If you lose your thin gs and go to the lost and found for help, you needn’t tell Mr.

George .

A. What it is

B. how much it is

C. its color

D. the day when you lost it.

3.T he students were having their chemistry（化学）

class. Miss Li was telling the children what water was like. After that，she asked her students，"What’s water？”No one spoke for a few minutes．Miss Li asked again，“Why don’

t you answer my question？Didn’t I tell you what water is like？”

Just then a boy put up his hand and said，“Miss Li，

you told us that water has no colour and no smell．But where to find such kind of water？

The water in the river behind my house is always black and it has a bad smell．”

Most of the children agreed with him．

“I’m sorry，children．”said the teacher，“Our water is getting dirtier and dirtier．That’

s a problem．

( )11.The students were having their class．

A．English B．Chinese C．chemistry D．maths

was like．

( )12．Miss Li was telling the children what

A．water B．air C．earth D．weather

( )13．A boy said，”The water in the river behind my house is always ．”

A．white B．black C．clean D．clear

( )14．Most of the children the boy．

A．agreed with B．wrote to C．heard from D．sent for

( )15．The water in the river has colour and smell because it is getting

．A．more and more

B．less and less

C．cleaner and cleaner D．dirtier and dirtier

1-5: CDADC 6-10: CDCBB 11-15: CABAD

4.W orking drawings are the complete set of standardized drawings specifying the manufacture an

d assembly of a product based on its design. Th

e complexity o

f the design determines the number and types of drawings. Workin

g drawings may be on more than one sheet and may contain written instructions called specifications.

Working drawings are blueprints used for manufacturing products. Therefore, the set of dra wings must:(a) completely describe the parts, both visually and dimensionally;(b)show the parts in assembly;(3)identify all the parts; and (4)specify standard parts. The graphics and text informatio n must be sufficiently complete and accurate to manufacture and assemble the product without err or.Generally, a complete set of Working drawings for an assembly includes:

(1)Detail drawings of each nonstandard parts.

(2)An assembly or subassembly drawing showing all the standard and nonstandard parts in a singl

e drawing.

(3)A bill of materials (BOM).

(4)A title block.

A detail drawing is a dimensioned, multiview drawing of a single part, describing the part’s shape, size, material, and surface roughness, in sufficient detail for the part to be manufactured based on

the drawing alone. Detail drawings are produced from design sketches or extracted from 3-

D computer models. They adhere strictly to ANSI standards and the standard for the specific comp any, for dimensioning, assigning part numbers, notes, tolerances, etc.

In an assembly, standard parts such as threaded fasteners and bearings are not drawn as details, but are shown in the assembly view. Standard parts are not drawn as details because they are normally purchased, not manufactured, for assembly.

For large assemblies or assembled with large parts, details are drawn on multiple sheets, and a sep arate sheet is used for the assembly view. If the assembly is simple or the parts are small, detail dr awings for each part of an assembly can be placed on a single sheet.

Multiple details on a sheet are usually drawn at the same scale. If different scales are used, they ar e clearly marked under each detail. Also, when more than one detail is placed on a sheet, the spaci ng between details is carefully planned, including leaving sufficient room for dimensions and note s.

1.Based on the message, which of the follow is wrong ?

A)standard parts needn’t drawn as details

B)for simple parts, sometimes needn’t to draw the detail working drawing

C)for large assemblies details may drawn on multiple sheets

D)If different scales used in a single sheet, they should clearly marked under each detail

2.Working drawings for an assembly MAY NOT includes: ?

A) BOM B) title block

C)An assembly or subassembly drawing

D)Detail drawings of all parts.

3.For detail drawing, Which one of the following statement is not true ?

A)should not has different scales

B)Detail drawing can produced from design sketches or extracted from 3-D computer models.

C)detail drawing is a dimensioned, multiview drawing of a single part

D)should Adhere strictly to ANSI standards

4.From the message we can infer ANSI is ?

A) a set of law B) a set of notification

C) an Organization D) IEEE government

5.The topic of the message is ?

A)How to design working drawings.

B)working drawing’s character a nd the key influence of how to draw a working drawing

C)In the design process, what should be considered?

D)What is working drawing

BC ACD

5.One principle aim of kinematics is to create (design) the desired motions of the subjects’ mechan ical parts and then mathematically compute the positions, velocities, and accelerations, which thos e will create on the parts. Since, for most earthbound mechanical systems, the mass remains essent ially constant with time, defining the accelerations as a function of time then also defines the dyna mic forces as a function of time. Stresses, in turn, will be a function of both applied and inertial (m a) forces. Since engineering design is charged with creating systems which will not fail during thei

r expected service life, the goal is to keep stresses within acceptable limits for the materials chosen and the environmental conditions encountered. This obviously requires that all system forces be d efined and kept within desired limits. In machinery, the largest forces encountered are often those due to the dynamics of the machine itself. These dynamic forces are proportional to acceleration, which brings us back to kinematics, the foundation of mechanical design. Very basic and early dec ision in the design process involving kinematic principles can be crucial to the success of any mec hanical design; a design which has poor kinematics will prove troublesome and perform badly. Any mechanical system can be classified according to the number of degree of freedom (DOF) wh ich it processes. The system’s DOF is equal to the number of independent parameters which are ne eded to uniquely define its position in space at any instant of time.

A rigid body free to move within a reference frame will, in the general case, has complex motion, which is a simultaneous combination of rotation and translation. In three-

dimensional space, there may be rotation about any axis and also simultaneous translation which c an be resolved into components along three axes. In a plane, or two-

dimensional space, complex motion becomes a combination of simultaneous rotation about one ax is (perpendicular to the plane) and also translation resolved into components along two axes in the plane

1、Kinematics research focus on the following EXCEPT ..

A) accelerations B) force C) positions, D) velocities

2、From the passage that for the design engineer the first and most important is

A) the service life of a machine B) the materials choose C) the degree of freedom D) kine matic principles

3、An mechanical system has uniquely defined position in space at any instant of time that .

A) It should has one DOF B) It should Has two DOF

C) the DOF and the number of independent parameters should equal D) It should has any DOF as want

4 、which one of the following is NOT TRUE ?.

A)A rigid body free to move in three-dimensional space may rotation about any axis

B)A rigid body free to move in three-

dimensional space is a simultaneous combination of rotation and translation

C)A rigid body free to move in three-

dimensional space can be resolved into components along three axes

D)A rigid body free to move in three-dimensional space may has complex motion

5、The best title for this passage would be .

A) kinematics B) dynamics

C) kinematics and dynamic D) the important of kinematics

BDCA C

三．翻译(加书上的)

1.A gear can be gripped axially between a shoulder on the shaft and a spacer, with

torque being transmitted through a key.

一个齿轮可以用轴肩和挡圈进行轴向固定，并通过键来传递.

2.One or more members such as gears, sprockets, pulleys, and cams are usually attached to the sha ft by means of pins, keys, splines, snap rings, and other devices.

一个或多个诸如齿轮，链轮，皮带轮和凸轮等类的构件通常借助于销、键、花键、卡环或其

它装置连接到轴上。

Interchangeability means that identical parts must be interchangeable, i.e., able to replace each other, whether during assembly or subsequent maintenance work; without the need for any fitting operations.

互换性意味着在相同的零件之间必须能够进行互换。无论是在装配时还是在其后的维修时，这些零件都可以互相取代而不需任何修配工作。

四．单词短语

1mechatronic 机电一体化（技术）

2sensor 传感器

3hydraulic 液压的4

machine tool 机床5

robot 机器人

6drill 钻床，钻头

7Lathe 车床

8mill 铣床

9grinder 磨床

10shaft 轴

12screw 螺杆

13tolerance 公差

15spring 弹簧

16key 键

17bearing 轴承

18coupling 联结器

19clutch 离合器

20digital 数字（式）的

21lever 杠杆

22Servomechanism 伺服机构

23actuator 传动装置

24following device 随动装置

25viscosity 粘性

26density 密度

27discipline 训练

28flexibility 柔韧性

29transmission 传送传播

30 piston 活塞31compact

紧凑的32.stability 稳定性

https://www.wendangku.net/doc/5a2012867.html,prehensive 综合的

34.standards 标准

35.discharge 卸下，放出

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At the end, Xiao Bian gives you a passage. Minand once said, "people who learn to learn are very happy people.". In every wonderful life, learning is an eternal theme. As a professional clerical and teaching position, I understand the importance of continuous learning, "life is diligent, nothing can be gained", only continuous learning can achieve better self. Only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the needs of the market. This document is also edited by my studio professionals, there may be errors in the document, if there are errors, please correct, thank you!