ASVAB Test Exam dumps PDF | Exam-Dumps.net (Page: 73)

QUESTION: 361

There are four types of fuel injection used in cars today. They are throttle body injection, multi-port injection, direct injection, and __________.

a manual continuous electronic flow injection
sequential fuel injection
automatic circuitous injection
manual intermittent injection

Answer(s): B

Explanation:

The four types of fuel injection used in cars today are throttle body injection, multi-port injection, direct injection, and sequential fuel injection.

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QUESTION: 362

Most automobile engines are __________.

two-stroke cycle engines
three-stroke cycle engines
four-stroke cycle engines
six-stroke cycle engines

Answer(s): C

Explanation:

Lawn mowers and outboard engines are two-cycle. They are used wherever horsepower is needed in a lightweight package. They run very fast in order to produce power. Four-cycle engines are used in automobiles, where various conditions exist and load variations are greater. One exception is the rotary or Wankel engine, which uses a rotary design to convert pressure into rotating motion instead of using reciprocating pistons.

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QUESTION: 363

When a spark plug fires, it is part of the __________.

power stroke
exhaust stroke
intake stroke
compression stroke

Answer(s): A

Explanation:

The spark plug fires, driving the piston downward to produce power. The intake stroke allows the fuel and air mixture to enter the cylinder. The compression stroke compresses the air/fuel mixture. The exhaust stroke allows the burnt gases to be removed from the cylinder.

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QUESTION: 364

If the universal joints are broken and the car is standing still, the car will __________.

not move when the engine is revved up
increase in speed
work as usual
become impossible to push

Answer(s): A

Explanation:

Universal joints are needed to allow the drive shaft to flex when the car goes over a bump in the road. If the universal joints are broken, the car will be unable to move since the drive shaft will not be connected to the power source.

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QUESTION: 365

When the clutch is engaged on a manual transmission, the clutch pedal will be __________.

down
up
halfway down
halfway up

Answer(s): B

Explanation:

The clutch pedal is pushed to the floorboard in order to release the engine from the drive train. Once the pedal is released and spring action returns it to the upward position, the clutch is engaged and the engine is connected to the drive train again.

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