武汉科技大学
- When ABS is not activated, the foundation brakes operate normally.（ ）
- ABS means anti-lock braking system.（ ）
- Generally, the mixture ignited in the combustion chamber of a diesel engine.（ ）
- Variable steering ratio makes the car respond quickly when starting a turn , and also reduces effort near the wheel’s turning limits. （ ）
- The oil pump continues to circulate the oil as long as engine is running. ( )
- Cruise control can save gas by avoiding surges that expel fuel while driving at steady speeds.（ ）
- To improve braking effectiveness is the most important reason for the use of ABS. （ ）
- In an electric car, the very simplest DC controller would be a big on/off switch wired to the accelerator pedal. （ ）
- Fuel filers are used to stop any contamination from getting into the fuel system of both gasoline and diesel engines. ( )
- Swept volume is the volume between TDC and BDC. ( )
- Airflow measurement is by one of two basic methods: mass airflow and speed density. ( )
- The master cylinder is a control device that converts non-hydraulic pressure into hydraulic pressure.（ ）
- Almost all modern braking systems use a booster that uses the engine vacuum to increase the force the brake lever applies to the master cylinder.（ ）
- When it is compressed, the mixture of air and fuel will be at a high pressure and temperature（ ）.
- The hydraulic control system is responsible for a variety of major activities that involve pressure and performance circuits.（ ）
- For identification purpose, manufactures classify automobile engines just by their cylinder arrangement. ( )
- DC motors is great for short bursts of acceleration.（ ）
- The Macpherson system uses the coil springs.（ ）
- It makes sense from an economic standpoint for an electric car to use the normal 12-volt lead-acid battery that every car has.（ ）
- In an electric car, the controller takes in hundreds volts DC, and delivers it to the motor in a controlled way. （ ）
- In addition to transferring power, the ring and pinion must cause the powerto make a 90° turn between the drive shaft and wheels（ ）.
- The rear wheels of a vehicle must turn at same speeds when rounding the slightest corner（ ）
- Nowadays, contact-point ignition system is often used on the modern cars.（ ）
- The operational controls of a cruise control system are usually located near the steering wheel so they can be easily operated by the driver. （ ）
- Fuel is drawn from the tank by the pump which set up pressure to around 40psi. ( )
- In order to reduce the speed of the vehicle，the brakes have to convert the kinetic energy stored in the vehicle to electrical energy. （ ）
- For a car to turn smoothly，each wheel must follow a different circle.（ ）
- To provide a more and continuous flow of power, automobiles have engines with six, eight, twelve or fourteen cylinders. ( )
- The pinion gear turns the side gear which, in turn, revolves the differential（ ）case.
- When the case turns, the differential pinion shaft turns with it.（ ）
- The oil has many purposes: there are lubricating, ( ), cleaning ect.
- The fuel system consists of lines, ( ), carburetor, and injectors.
- The cooling system of a water-cooled engine consists of the engine’s water jacket, a water pump, a radiator and radiator cap, a ( ) ect.
- The body is the enclosure that houses the ( ).
- A car uses a four-stroke engine. The four strokes are( ) strokes.
- The charging system had two goals:（ ）
- A torque converter contains the following main parts （ ）。
- Which are the jobs of final drive? （ ）。
- There are two types of cooling systems—( ).
- The modern automatic transmission consists of （ ）。
- 8. What is the other name for a throw-out bearing?
- diaphragm spring （ ）.
- Just before the bottom of power stroke, the exhaust valve( ).
- A space that is completely empty of all substances, including all air or other gas( )
- 13. Which statement is wrong about AT?
- How many ignition coils are there in a non-distributor ignition system for a 4-cylinder engine? （ ）
- The inlet valve would have a duration of ( ) for openning
- According to the method of ignition of the air-fuel mixture, engines are divided into ( )
- An is a ( ) component that typically seals the bottom side of four-stroke, internal combustion engines.
- Which of the following is not a part of the chassis？( )
- governor （ ）.
- （ ） is located between the engine and transmission.
- 9. How many clutches are in an automatic transmission?
- 21. What do brake calipers do?
- The major components of a （ ） are ECU, ICU, a set of ignition coils and some sensors.
- brake booster （ ）.
- Water pump is driven by ( ).
- what causes a car to burn an lose oil? ( )
- Most automatics use the planetary gears to provide various （ ）ratios.
- An engine is mainly composed of two mechanisms and ( ) systems
A:错 B:对
答案:对
A:错 B:对
答案:对
A:错 B:对
答案:错
A:对 B:错
答案:对
A:错 B:对
答案:对
A:错 B:对
答案:对
A:错 B:对
答案:错
A:对 B:错
答案:对
A:对 B:错
答案:对
A:错 B:对
A:对 B:错
A:对 B:错
A:对 B:错
A:错 B:对
A:错 B:对
A:对 B:错
A:错 B:对
A:错 B:对
A:对 B:错
A:错 B:对
A:对 B:错
A:错 B:对
A:对 B:错
A:对 B:错
A:错 B:对
A:错 B:对
A:错 B:对
A:对 B:错
A:对 B:错
A:错 B:对
A:cooling
B:warm
C:seal
D:heat
A:pump
B:filter
C:sump
D:fuel tank
A:thermostat
B:cylinder
C:fan
D:camshaft
A:cargo
B:engine
C:chassis
D:passengers
A:intake
B:compression
C:exhaust
D:power
A:To monitor the batteries and avoid damaging them during the charging process.
B:To pump electricity into the batteries as quickly as the batteries will allow.
C:To provide power for accessories.
A:stator
B:impeller
C:turbine
D:pressure plate
A:distribute the power
B:increase the torque
C:control the timing of the power
D:lower the speed
A:vapor
B:air
C:liquid
D:oil
A:planetary gear sets
B:the hydraulic system
C:computer controls
D:the torque converter
A:Turn around bearing B:Flywheel bearing C:Clutch release bearing
A:分布弹簧
B:膜片弹簧
C:分离弹簧
D:压紧弹簧
A:downs
B:closes
C:ups
D:opens
A:Accumulator
B:Override
C:Resume
D:vacuum
A:The torque converter which acts like a clutch to allow the vehicle to come to a stop. in gear while the engine is still running B:Planetary gear sets which are the mechanical systems that only provide the various forward gear ratios C:The hysraulic system which uses a special transmission fluid sent under pressure by an oil pump through the valve body to control the clutches and bands in order to control the planetay gear sets D:The governor and the modulator or throttle cable that monitors speed and throttle position in order to determine when to shift
A:Two
B:One
C:Three
D:Four
A:小于180°
B:大于180°
C:270°
D:180°
A:gas engine and steam engine
B:internal combustion engine and diesel engine
C:external combustion engine and compression ignition engine
D:gasoline engine and diesel engine
A:oil pan
B:sump
C:valve
D:connecting rod
A:lubrication system
B:suspension system
C:steering system
D:braking system
A:调速器
B:衬垫
C:调制器
D:固定片
A:Drive shaft
B:Clutch or torque converter
C:Differential
D:Transfer case
A:Several B:One C:Hundreds
A:They squeeze the brake pads against the brake rotor B:They control the flow of brake fluid C:All of the above
A:non-point ignition system
B:contact-point ignition system
C:non-distributor ignition system
D:conventional ignition system
A:起动机
B:助推器
C:制动助力器
D:升压机
A:camshaft
B:connecting rod
C:valve
D:crankshaft
A:an old engine with piston rings that no longer seal the cylinder and piston properly.
B:a failing exhaust system
C:lack of gas
D:radiator trouble
A:uncertain
B:increasing
C:reductions
D:no change
A:six
B:four
C:five
D:one
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