国开形成性测评系统5108017 汽车实用英语（省） 网上在线形考作业[答案]

[答案]中央电大形成性测评系统 5108017 汽车实用英语（省） 网上在线形考作业

Compared with the fan on older vehicles, the advantage of the electric fan is that ( ).

正确答案:A

A. there is no frictional power loss
B. there is no fan belts
C. it is driven by the camshaft
D. both A and B
D

正确答案:A

A valve opens and closes ( ) times per mile.

正确答案:B

A. more than 2,000
B. less than 2,000
C. 2,000
D. 100,000
C

正确答案:B

The function of the primary windings is to ( ).

正确答案:C

A. transmit the high voltage from the coil to the spark plug.
B. capture the voltage
C. produce a magnetic field
D. change the electrical energy into a magnetic field
D

正确答案:B

There are two basic types of engine valves:( ).

A. the intake valve and the inlet valve
B. the intake valve and the inlet valve
C. the output valve and the inlet valve
D. the exhaust valve and the output valve

正确答案:C

What type of material used is determined exactly by ( ).

正确答案:D

A. the stress
B. load temperature
C. aging qualities
D. all of the above

正确答案:D

The purpose of valve springs is to ( ).

A. keep valves close when the camshaft is not lifting the valve.
B. keep valves open
C. keep valve float
D. keep valves bounce

正确答案:D

The spark ignition engine can change the ( ) contained in fuel into kinetic energy.

正确答案:A

A. chemical energy
B. physical energy
C. electrical energy
D. solar energy

正确答案:C

According to the location of the camshaft, the valve trains are divided into overhead camshaft type and ( ).

正确答案:A

A. valve seat
B. valve guid type
C. side camshaft type
D. intake valve and exhaust

正确答案:C

Within the gasoline or the diesel engine, about ( ) of the energy is used to drive the vehicle.

正确答案:C

A. 25%
B. 33%
C. 9%
D.
all of the above

正确答案:D

The theoretical ideal for plete bustion is a mass ratio of ( ).

正确答案:C

A. 1:14.7
B. 14:1.7
C. 7:14.1
D. 14.7:1

正确答案:C

electronic ignition system 意思是电子点火系统

A. 错误
B. 正确

electronic injection system 意思是机械燃油喷射系统

A. 错误
B. 正确

timing advanced 意思是正时延迟

正确答案:D

A. 错误
B. 正确

oil sensor 意思是机油冷却器

A. 错误
B. 正确

clutch pedal 意思是离合器踏板

正确答案:D

A. 错误
B. 正确

nonchargeable 意思是不可在充电的

A. 错误
B. 正确

cold starting 意思是热启动

正确答案:D

A. 错误
B. 正确

exhaust gas turbochargers 意思是废气涡轮增压器

A. 错误
B. 正确

muffler 意思是消声器

A. 错误
B. 正确

air-cooling system 意思是空气冷却系统

A. 错误
B. 正确

oil bath air filter 意思是干式空气滤清器

A. 错误
B. 正确

inertia engaged motor 意思是预啮合电机

正确答案:D

A. 错误
B. 正确

secondary winding 意思是初级线圈

正确答案:B

A. 错误
B. 正确

dashboard 意思是仪表板

正确答案:D

A. 错误
B. 正确

pressure regulator 意思是调压器

A. 错误
B. 正确

With front drive arrangement or rear-wheel-drive arrangement, ______ transmit the power to the drive wheels.

正确答案:D

A. piston engine
B. gears
C. gears and shafts
D. diesel engine

正确答案:D

A spark ignition engine has one more basic system than Diesel engine to run, it is______,

正确答案:C

A. fuel system
B. ignition system
C. lubricating system
D. cooling system

正确答案:B

The connecting rod is made of ______.

正确答案:A

A. cast iron
B. forged alloy steel
C. aluminum-alloy
D. sheet steel

正确答案:A

The ______ system is used to reduce the air pollution caused by the engine.

正确答案:C

A. lubricating
B. emission control
C. starting
D. ignition

正确答案:A

During the power stroke, a force of up to 4000 pounds is suddenly applied to the piston head for ______ times a second.

正确答案:B

A. 30
B. 40
C. 70
D. 30 to 40

正确答案:B

The ______ system is applied to prevent metal parts of the engine from rubbing against each other.

正确答案:A

A. emission control
B. cooling
C. starting
D. lubricating

正确答案:C

An automobile includes the following major categories: the body, the engine, _____ and the electrical system.

正确答案:D

A. steering system
B. power source
C. chassis
D. ignition system

正确答案:B

正确答案:B

After the fuel system delivers air-fuel mixture to a cylinder, a (an) ______ ignites the mixture.

正确答案:D

A. electric spark
B. battery
C. spark plug
D. ignition system

In a four-stroke cycle, which one is actually doing work?

正确答案:D

A. intake stroke
B. pression stroke
C. power stroke
D. exhaust stroke

正确答案:D

______ is used to separate drive from the engine to gearbox and to allow a smooth, progressive take-up of drive.

正确答案:A

A. The clutch
B. The transmission system
C. The drum brake
D. The shock absorber

正确答案:C

internal bustion engine 意思是内燃机

A. 错误
B. 正确

radiator 意思是散热器

正确答案:B

A. 错误
B. 正确

self-ignition 意思是自燃

A. 错误
B. 正确

air-cooled engine 意思是风冷发动机

正确答案:D

A. 错误
B. 正确

full-slipper piston 意思是(高速发动机)轻型活塞

A. 错误
B. 正确

steering wheel 意思是方向盘

A. 错误
B. 正确

cooling system 意思是冷却系统

A. 错误
B. 正确

drive shaft 意思是传动轴

正确答案:D

A. 错误
B. 正确

spark plug 意思是火花塞

A. 错误
B. 正确

valve float 意思是气门反跳

A. 错误
B. 正确

power steering pump 意思是动力转向泵

A. 错误
B. 正确

total capacity 意思是总排量

A. 错误
B. 正确

timing chain 意思是正式齿轮

A. 错误
B. 正确

fuel injection pump 意思是直列式喷油泵

A. 错误
B. 正确

overhead camshaft 意思是侧置凸轮轴

正确答案:A

A. 错误
B. 正确

When the tire is on a dry asphalt surface, the maximum frictional force of the tire ( without sliding) is usually between ( ) of the radial load.

正确答案:D

A. 60%-90%
B. 60%-70%
C. 80%-90%
D. 50%-60%

正确答案:D

The ( ) brake was adopted in a two-ton-plus automobile to safely stop from the 70m/h and 80m/h highway speeds of the time.

正确答案:D

A. internal expanding-shoe
B. service
C. external expanding-band
D. disc

正确答案:A

By the method of changing the gear ratio,the transmissions are divided into ( ),stepless, and bined transmissions.

正确答案:D

A. fixed-ratio
B. multiple-speed
C. five-speed
D. fixed-axle

正确答案:B

The ( ) brake was designed to solve the problem that small shoes would overheat or wear out, and braking power would be lost.

正确答案:D

A. internal expanding-band
B. external contracting-band
C. disk
D. interal expanding-shoe

正确答案:D

Unlike internal expanding-band brakes, the internal expanding-shoe brakes replace the flexible brake band with ( ).

正确答案:A

A. small brake shoes
B. spinning discs
C. rigid brake shoes
D. large brake band with a suitable friction material

正确答案:C

In modern transmissions of general-purpose trucks and bused, the gear ratio varies between ( ).

正确答案:D

A. 5.0 and 8.0
B. 10 and 20
C. 3.0 and 4.5
D. 6 and 16

正确答案:C

According to the location of shafts, the transmissions can be with foxed-axle shafts,( ),and of bined type.

正确答案:D

A. multi-shafts
B. three-shafts
C. two-shafts
D. rotating-axle shafts

正确答案:C

In the internal expanding-band brake, the band inside of the brake drum is actuated by a ( ).

正确答案:B

A. rotating cam
B. lever
C. brake shoe
D. rotor

正确答案:A

The first type of known vehicular brakes is ( ).

A. chariot brake
B. locked wheel
C. external contracting-band brake
D. internal expanding-band brake

正确答案:D

The tire loads include three load groups: side load, radial load and ( ).

正确答案:D

A. vertical load
B. traversal load
C. tractive load
D. internal load

正确答案:C

automatic transmission 意思是自动变速器

A. 错误
B. 正确

forward gear 意思是倒挡

正确答案:A

A. 错误
B. 正确

front-engine front-drive 意思是发动机前置前轮驱动

正确答案:A

A. 错误
B. 正确

emergency flasher switch 意思是雨刷开关

A. 错误
B. 正确

handling characteristics 意思是操纵性能

正确答案:A

A. 错误
B. 正确

steering linkage 意思是齿轮机构

A. 错误
B. 正确

short-long arms 意思是不等长双横臂

A. 错误
B. 正确

helical wheel 意思是螺旋齿轮

A. 错误
B. 正确

propeller shaft 意思是传动轴

A. 错误
B. 正确

longitudinally 意思是横置地

正确答案:D

A. 错误
B. 正确

driving member 意思是从动件

正确答案:B

A. 错误
B. 正确

performance vehicle 意思是特种车

A. 错误
B. 正确

constant velocity joint 意思是球叉式万向节

A. 错误
B. 正确

coast in neutral 意思是空挡惯性滑行

A. 错误
B. 正确

pneumatic spring 意思是扭力弹簧

A. 错误
B. 正确

The ECU uses ( ) to measure the deceleration due to the collision and calculate the change in speed.

正确答案:A

A. the acceleration sensor
B. the airbag
C. the sensor connection
D. the belt strap

正确答案:A

The condition of ( ) means that the smooth tire rides up on the surface water.

正确答案:A

A. hydroplaning
B. sliding
C. low-speed harshness
D. slipping

正确答案:C

In a head-on collision with a fixed obstacle at ( ) km/h, a three-point seat belt can only offer limited protection.

正确答案:C

A. 50
B. approx.60
C. 40
D. above 40

正确答案:D

Radial tires were first used on ( ) because they produce good steering sensitivity.

正确答案:B

A. passenger vehicles
B. trucks
C. sports cars
D. race cars

正确答案:B

By retracting and tightening the belt strap, the ( ) pensates for belt slack and film-reel effect in a collision.

正确答案:A

A. airbag
B. plunger
C. shoulder belt tightener
D. fast-acting lock

正确答案:C

In a collision, the whole procedure of airbag’s inflation and deflation takes nearly ( ).

正确答案:A

A. 0.1second
B. 1minute
C. 1 sencond
D. 0.1 minute

正确答案:D

The ( ) has two sets of passages: air passages and refrigerant tubes.

正确答案:B

A. receiver
B. evaporator
C. condenser
D. pressor

正确答案:A

The function of ( ) is to hold the occupants in their seats when the vehicle hits an obstacle.

正确答案:A

A. tightener
B. seat belts
C. fast-acting lock
D. airbag

正确答案:A

The distance between the centerline of the rim and the mounting face of the disc is called ( ).

正确答案:B

A. the steering sensitivity
B. the resonant frequency
C. the slip angle
D. the wheel offset

正确答案:A

The ( ) tire has the greatest steering sensitivity.

A. bias
B. radial
C. radial ply
D. asymmetric

正确答案:C

understeer 意思是过度转向

正确答案:D

A. 错误
B. 正确

maintenance-free battery 意思是免维护电池

A. 错误
B. 正确

high beam 意思是近光灯

A. 错误
B. 正确

negative plate 正极板

A. 错误
B. 正确

side impact detection 意思是侧向加速度

正确答案:B

A. 错误
B. 正确

receiver 意思是储液器

A. 错误
B. 正确

acceleration sensor 意思是加速度传感器

A. 错误
B. 正确

tread pattern 意思是胎面花纹

正确答案:A

A. 错误
B. 正确

halogen sealed beam 意思是标准密封光束

正确答案:C

A. 错误
B. 正确

refrigeration system 意思是制冷系统

A. 错误
B. 正确

service brake 意思是行车制动器

A. 错误
B. 正确

.radial load 意思是侧向载荷

正确答案:D

A. 错误
B. 正确

parabolic reflector 意思是抛物镜

A. 错误
B. 正确

four-wheel drive 意思是四轮驱动

正确答案:A

A. 错误
B. 正确

instrument voltage regulator 意思是仪表电压调节器

A. 错误
B. 正确

[答案]中央电大形成性测评系统 5108017 汽车实用英语（省） 网上在线形考作业国开电大历年参考题目如下：

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