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Question:

Which of the following is the location of the differential on a drive axle?

A D

explanation

The correct answer is (D). A differential allows cars to rotate at different speeds as the car goes around a corner. It helps the drive axle split the power between the two drive wheels.

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The catalytic converter converts toxic gases into compounds such as ____.

Carbon dioxide

Catalytic converters convert pollutants like carbon monoxide, hydrocarbons, and nitrogen oxides into carbon dioxide and water.

An internal combustion engine in which the cylinders are aligned in two banks, which are at an angle to each other, is known as a

V-engine

The angle of the two cylinder banks makes a "V" shape.

What type of nut uses a cotter pin?

castellated nut

A castellated nut uses a cotter pin to lock it into place, which must pass through a hole in the bolt or stud that the nut is threaded on.

A coping saw is used to make ____.

Intricate, curving cuts

Coping saws are best for cutting final details and utilize thin, flexible blades.

If one complete revolution of the steering wheel causes the wheels to turn 20 degrees, what is the steering ratio?

18:1

A complete revolution of the steering wheel is 360 degrees. Thus, the steering ratio is 360:20 which reduces to 18:1

Which of the following will NOT occur from setting a spark plug gap wider?

a smaller weaker spark

Setting a spark plug gap narrower can result in a smaller weaker spark. Setting it wider may result in a bigger spark, better combustion but a potential misfire.

What type of combustion system powers automobiles?

Internal

Automobiles are powered by internal combustion systems. This means that fuel is burned internally, inside a combustion chamber, and that fuel is used to power the parts of the engine.

Which type of saw is best used for cutting small, often awkward features in building materials such as drywall?

Keyhole saw

The keyhole saw has a long narrow blade and is often used to cut small openings in drywall and other building materials.

In the diagram above, what is the location of the fuel pressure regulator?

C

The correct answer is (C). As pictured above, the fuel pressure regulator regulates pressure in the fuel rail according to intake manifold vacuum.

Which part of the fuel system sprays a fuel and air mixture into the engine's combustion chamber?

fuel injector

Fuel injectors atomize the fuel by pumping it through a small nozzle under high pressure. Atomizing the fuel is the process of breaking it into a fine misted spray.

Making large (wider than 1/2") holes in wood is called ____.

Boring

Generally, making large (bigger than 1/2" diameter) holes is done through a process called boring. This can be done using holesaws, rather than drill bits.