汽车专业英语期末答案2023秋

1.During cruise control operation, the servo controls the throttle position by changing the amount of vacuum in the servo.（ ）
A:错 B:对
答案:对
2.The transmission is designed for changing the speed and power from the clutch to the propeller shaft. （ ）
A:错 B:对
答案:错
3.Just before the bottom power stroke, the exhaust valve closes. ( )
A:错 B:对
答案:对
4.The speed sensor provides a signal to the cruise electronic controller indicating the vehicle speed.（ ）
A:对 B:错
答案:对
5.In full-flow filtering system, the output of the oil pump flows through the oil filter before moving through engine. ( )
A:错 B:对
答案:对
6.The hydraulic control system is responsible for a variety of major activities that involve pressure and performance circuits.（ ）
A:错 B:对
答案:对
7.ABS means anti-lock braking system.（ ）
A:对 B:错
答案:对
8.In addition to transferring power, the ring and pinion must cause the powerto make a 90° turn between the drive shaft and wheels（ ）.
A:错 B:对
答案:对
9.TCS means traction control system.（ ）
A:对 B:错
答案:对
10.The cooling system is designed to stay out of the action until the engine is warmed up. ( )
A:错 B:对
答案:对
11.The Macpherson system uses the coil springs.（ ）
A:对 B:错

12.In most cars, the oil pump is in the crankcase above the sump. ( )
A:错 B:对 13.The engine is a self-contained power unit which converts the energy of fuel into mechanic energy for moving the vehicle. ( )
A:错 B:对 14.The cooling system removes excessive heat from the engine. ( )
A:错 B:对 15.The suspension protects the vehicle itself and any cargo or luggage from damage and wear.（ ）
A:对 B:错 16.An electric car has a normal 12-volt lead-acid battery to power all of the accessories.（ ）
A:对 B:错 17.Automobile have many kind of structure and shape, but their basic structure is different each other. ( )
A:对 B:错 18.The master cylinder is a control device that converts non-hydraulic pressure into hydraulic pressure.（ ）
A:对 B:错 19.As rpm is increased, up to a point, airflow also increases an fuel flow must increase to match it. ( )
A:对 B:错 20.The primary purpose of ABS is to preserve directional stability and allow the driver to continue steering during emergency braking. （ ）
A:对 B:错 21.DC motors is great for short bursts of acceleration.（ ）
A:对 B:错 22.The power from engine moves through the transmission. ( )
A:对 B:错 23.By controlling the throttle position, the speed of the vehicle is maintained according to the cruise control settings. （ ）
A:对 B:错 24.Springs absorb the shocks of the road surface so that passengers have a comfortable ride.（ ）
A:对 B:错 25.The front wheels must point in just the right direction for the car to move straight down the road and turn properly.（ ）
A:错 B:对 26.During charging, the charger sends as much current as it can.（ ）
A:对 B:错 27.The typical brake system consists of drum brakes in front and either disk or drum brakes in the rear.（ ）
A:对 B:错 28.The energy to stop the vehicle is normally dissipated as heat in the drums or rotors.（ ）
A:错 B:对 29.A clutch is used to transmit the power from the engine to the transmission and to shift gears on a manual transmission（ ）
A:错 B:对 30.A radiator is a type of the heat ex-changer. ( )
A:错 B:对 31.19.              allows the drive shaft to flex when the drive angle changes.
A:Ball joint B:Pitman arm C:Steering knuckle D:U-joint 32.How many drive shafts are there in a 4WD cars? （ ）
A:Four B:One C:None D:Two 33.22. What is arguably the most important automobile brake part?
A:The brake pad B:The brake caliper C:None of the above 34.12. In an automatic transmission, the shift lever hooks up to the               .
A:vacuum modulator B:manual valve C:throttle valve 35.When you park your car on an uneven road, you have to use（ ）.
A:service brake B:parking brake C:disk brake D:drum brake 36.The four-stroke cycle operates in which order? ( )
A:intake, compression exhaust, power B:intake, exhaust, power, compression C:intake, e compression, power, exhaust D:intake, power, compression, exhaust 37.15. Which section is the brain of the automatic transmission that directs hydraulic fluild to the numerous valves?
A:Torque converter B:Valve body C:Oil pump D:Planetary gear sets 38.friction lining （ ）.
A:衬垫 B:摩擦衬片 C:摩擦材料 D:摩擦盘 39.A transmission provides a means for changing （ ）between engine rpm and driving wheels rpm.
A:the speed B:the ratio C:the situation D:the power 40.25. What is the purpose of all the bends and loops in brake lines?
A:They help dissipate heat B:They add flair C:They add flexibility 41.planet gear （ ）.
A:齿圈 B:太阳轮 C:行星轮 D:行星架 42.inertial force means ( )
A:惯性力 B:气体力 C:重力 D:离心力 43.An engine is mainly composed of two mechanisms and ( ) systems
A:four B:six C:five D:one 44.brake booster （ ）.
A:助推器 B:升压机 C:起动机 D:制动助力器 45.The type of power needed to make a vehicle move, or to pull a heavy load ( )
A:traction B:thrust C:engine torque D:axial thrust 46.release bearing （ ）.
A:分离指 B:分离叉 C:分离轴承 D:止推轴承 47.The rod journals are bored hollow in order to reduce the crankshaft ( ).
A:gas force B:centrifugal force C:inertia D:gravity 48.The major components of a （ ） are ECU, ICU, a set of ignition coils and some sensors.
A:conventional ignition system B:non-distributor ignition system C:non-point ignition system D:contact-point ignition system 49.How many ignition coils are there in a non-distributor ignition system for a 4-cylinder engine? （ ）
A:Four B:Two C:Three D:One 50.The body is the enclosure that houses the ( ).
A:passengers B:chassis C:engine D:cargo 51.The oil has many purposes: there are lubricating, ( ), cleaning ect.
A:seal B:cooling C:heat D:warm 52.The requirements of a steering system are:（ ）
A:sustainability B:good directional control C:easy of handling D:stability 53.The fuel system consists of lines, ( ), carburetor, and injectors.
A:fuel tank B:sump C:pump D:filter 54.Disk brake is consisted of （ ）。
A:two brake pads B:a brake plate C:a brake disk D:a brake caliper 55.In operation, the connecting rod is subjected to both ( ) and ( ) .（ ）
A:inertia loads B:centrifugal force C:gas pressure D:gravity 56.The crankshaft is made up of various parts such as ( ) and flywheel end.
A:crank arm bearing B:main bearing journals C:counter-balanced weight D:rod journal 57.The charging system had two goals:（ ）
A:To provide power for accessories. B:To pump electricity into the batteries as quickly as the batteries will allow. C:To monitor the batteries and avoid damaging them during the charging process. 58.There are （ ） which affect the operation of hydraulic valves in the hydraulic control system.
A:modulator pressure B:fluid pressure C:line pressure D:governor pressure