2018电大汽车专业英语形考答案.docx

1、What do almost all cars use to convert gasoline into motion?选择一项：A. one-stroke combustion cycleB. two-stroke combustion cycleC. three-stroke combustion cycleD. four-stroke combustion cycleA car engines job is to .选择一项：A. convert fuel into heartB. convert fuel into exhaustC. convert fuel into motion题

2、目 3答案已保存满分 25.00标记题目题干请在左右两侧中将正确的词组连线限压阀 答案 1 oil pressure relief valve火花塞 答案 2 spark plug机油泵 答案 3 oil pump空挡安全开关 答案 4 neutral safety switch燃油滤清器 答案 5 fuel filter上 一 页A car uses a four-stroke engine. The four strokes are .选择一项：A. injection, carburetion, rotation and exhaustB. intake, compression, ig

3、nition and exhaustC. injection, rotation, ignition and exhaustWith the at the bottom of the cylinder, the exhaust valve opens to allow the burned exhaust gas to be expelled to the exhaust system.选择一项：A. valveB. camshaftC. crankshaftD. pistonAccording to the method of ignition of the air-fuel mixture

4、, engines are divided into .选择一项：A. external combustion engine and compression ignition engineB. internal combustion engine and diesel engineC. gasoline engine and diesel engineD. gas engine and steam engine上 一 页What is the core of a cars engine?选择一项：A. The cylinderB. The spark plugC. Windshield-was

5、her fluidD. ExhaustWhich statement about cylinder head is fault?选择一项：A. The cylinder head is bolted to a very flat surface above the cylinder portion of the block.B. The cylinder head is cast into one piece from iron only.C. The cylinder head forms the upper portion of the combustion chamber.D. The

6、cylinder head is used to hold the valves, and it has ports to allow air, fuel and exhaust to move through the engine.上 一 页The crankshaft and connecting rod converts energy into energy used to drive the vehicle.选择一项：A. mechanical, thermalB. thermal, mechanicalC. mechanical, kineticD. mechanical, ther

7、malWhat causes a car to burn and lose oil?选择一项：A. A failing exhaust systemB. Lack of gasC. Radiator troubleD. An old engine with piston rings that no longer seal the cylinder and piston properly.上 一 页What is the heart of the lubrication system, which is located in the oil pan on the bottom of the en

8、gine? And it pulls oil up from the oil pan and makes the engine oil circulate through the engine.选择一项：A. oil pumpB. oil filterC. Screened intakeD. oil pressure relief valveICE internal combustion engine 内燃机TDC 上止点 internal combustion engine 内燃机BDC 下止点 bottom dead center 下止点ACL 空气滤清器 air cleaner 空气滤清

9、器ALT 发电机 alternator 交流发电机 22222222液压答案 1hydraulic pressure分离轴承答案 2release bearing离合器主缸答案 3master cylinder传动系统答案 4drive line/drive train/power train万向传动装置答案 5universal joint gearWhich statement about the Lubrication oil is fault?选择一项：A. The oil absorbs and carries the heat away from the engine compon

10、ents.B. The oil forms a film on the metal surface and prevents a metal to metal contact.C. The oil washes off dirt away from the engine parts through its chemistry.上 一 页What is the cooling agent in the liquid cooling system?选择一项：A. AirB. CoolantC. LubricationWhat is it apparatus that cools the motor

11、?选择一项：A. CoolantB. ThermostatC. RadiatorTo avoid loss of antifreeze due to expansion, the cooling system .选择一项：A. must not be completely filledB. must install a bypass valveC. must install a pressure control valveThe primary role of the distributor is to distribute high voltage from the to the corre

12、ct cylinder.选择一项：A. Spark plugB. coilC. pistonSpark timing is so critical to an engines performance that most modern cars use a sensor to tell the engine control unit(ECU) .选择一项：A. the exact temperature of the spark plugs.B. the exact position of the pistons.C. the exact location of the coil.上 一 页Wh

13、en you turn the key to a car, the starter motor will .选择一项：A. send electricity to the spark plugs, then start the ignition system.B. send electricity to the fuel pump, then force the car to start.C. spin the engine a few revolutions, then start the combustion process.The amount of force the clutch c

14、an hold depends on the between the clutch plate and the flywheel , and how much force the spring puts on the pressure plate.选择一项：A. distanceB. frictionC. relationshipWhat is the most common problem associated with clutches?选择一项：A. The friction material on the disk wears out.B. The friction material

15、on the disk makes a whining noise.C. The friction material on the disk lasts too long.A manual transmission is connected to the engine through the .选择一项：A. clutchB. differentialC. belt上 一 页SD sales department 销售部门FAW first automotive works 第一汽车制造厂SUV sports utility vehicle 运动型多功能用车MPV Multi-purpose

16、vehicle 多功能用车CRV city recreation vehicle 城市休闲车3333333主减速器 答案 1 final drive齿条齿轮转向器 答案 2 rack-and-pinion驱动桥 答案 3 driving axle驱动齿轮 答案 4 pinion gear半轴 答案 5 half shaftA latch mechanism is inserted into the slot in the output shaft in the manual transmission, so as to lock the drive wheels and keep them f

17、rom turning, thereby preventing the vehicle from rolling. Which gear does the statement indicate?选择一项：A. The fifth gearB. The neutralC. The parkingD. The reverseHow faster should a car with a CVT reach 60 mph (97kph) than the same car with the same engine and a manual transmission?选择一项：A. 40 percent

18、B. 25 percentC. 10 percentWhich of the following is one of the jobs of the differential? 选择一项：A. To allow the wheels to rotate at exactly the same speed.B. To aim the engine power at the wheels.C. To maintain torque.The drive shaft connects to .选择一项：A. the transmission input; the differential pinion

19、 shaftB. the cylinder; the clutchC. the clutch; the transmission outputD. the transmission output; the differential pinion shaftWhat are the two main types of steering systems that cars use?选择一项：A. Recirculating-ball and rack-and-pinion.B. Recirculating-ball and power-assisted.C. Rack-and-pinion and

20、 power-assisted.D. Power-assisted and active steering.What is the function of a backing plate? 选择一项：A. To control the brake pads.B. To control the flow of brake fluid.C. To hold the braking system togetheris a computer-controlled brake system that helps prevent wheel lockup during braking.选择一项：A. AB

21、SB. EBCMC. ITSD. GPSThe three process involved in the ABS working process are as follows:选择一项：A. Pressure increases cycle, pressure maintains cycle, pressure reduces cycle.B. Pressure reduces cycle, pressure maintains cycle, pressure increases cycle.C. Pressure maintains cycle, pressure reduces cycl

22、e, pressure increases cycle.D. Pressure maintains cycle, pressure increases cycle, pressure reduces cycle.What does MSRP stand for ?选择一项：A. Manufacturer suggested rate plan.B. Manufacturer suggested ranking place.C. Manufacturer suggested retail price.What does APR stand for?选择一项：A. Average principl

23、e rate.B. Annual primary rate.C. Annual percentage rate.RPM revolutions per minute 每分钟转数CVT continuously variable transmission 无极变速器CVJ constant velocity joint 等速万向节SS steering system 转向系统ABS anti-lock braking system 防抱死制动系统4444444转向盘答案 1 steering wheel鼓式制动答案 2 drum brake盘式制动答案 3 disk brake循环球转向器 答案

24、 4 recirculating ball蜗轮答案 5 worm gear2 As the crankshaft nears the end of its second complete revolution, the piston again approaches the _ position.选择一项：A. ATDCB. TDCC. BBDCD. BDC3Coolant in a liquid-cooled system flows directly from the water pump to the _.选择一项：A. water jackets and passageB. top o

25、f the radiatorC. bottom of the radiatorD. cylinder headWhat device is used to reduce the acoustic pressure of exhaust gases and discharge the gases into the atmosphere?选择一项：A. Catalytic converterB. ResonatorC. MufflerD. Exhaust manifoldWhich component in the ignition circuit provides high voltage in

26、 the secondary circuit?选择一项：A. Ignition distributorB. BatteryC. Ballast resistorD. Ignition coilWhat percentage of engine heat is dissipated through the cooling, lubricating, and fuel systems?选择一项：A. Between 10% to 15%B. Between 40% to 45%C. Between 20% to 25%D. Between 30% to 35%It does not only have economic effects but also provide job opportunities.选择一项：A. countlessB. numerousC. a lot of