题目内容

Spark timing is so critical to an engine's performance that most modern cars use a sensor to tell the engine control unit(ECU)_____

A. the exact temperature of the spark plugs.
B. the exact position of the pistons.
C. the exact location of the coil

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When you turn the key to a car, the starter motor will_____

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

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The amount of force the clutch can hold depends on the_____ between the clutch plate and the flywheel , and how much force the spring puts on the pressure plate.

A. distance
B. friction
C. relationship

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What is the most common problem associated with clutches?

A. The friction material on the disk makes a whining noise
B. The friction material on the disk wears out
C. The friction material on the disk lasts too long

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A 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 from turning, thereby preventing the vehicle from rolling. Which gear does the statement indicate?

A. The fifth gear
B. The parking
C. The neutral
D. The reverse

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Spark timing is so critical to an engine's performance that most modern cars use a sensor to tell the engine control unit(ECU)_____

A. the exact temperature of the spark plugs. B. the exact position of the pistons. C. the exact location of the coil

When you turn the key to a car, the starter motor will_____

The amount of force the clutch can hold depends on the_____ between the clutch plate and the flywheel , and how much force the spring puts on the pressure plate.

What is the most common problem associated with clutches?

A 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 from turning, thereby preventing the vehicle from rolling. Which gear does the statement indicate?

A. the exact temperature of the spark plugs.
B. the exact position of the pistons.
C. the exact location of the coil