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 3. The maximum allowable deflection of a shaft peed, gear, or bearing requirements.
D. screw
determined by critical s
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.
A. used 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
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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. Lassie 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. Mr. 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
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( )10.If you lose your things 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. The students were having their chemistry（化学）
class. Miss Li was telling the children what water was like. After that，she asked her students， \’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 ( )12．Miss Li was telling the children what was like． 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. Working drawings are the complete set of standardized drawings specifying the manufacture an
d assembly of a product based on its design. The complexity of the design determines the number and types of drawings. Working 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
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机电专业英语复习题及答案(可编辑修改word版)
