Air Brake Practice Test 01

What can be used to gain a mechanical advantage?

Most brake linings should not exceed what temperature?

What happens if one or two of the wheels had brakes that were not properly adjusted?

What is another word for the air that is squeezed into a smaller space?

A compressor is designed to pump air into what?

In vehicles where the compressor is driven by belts, they should be checked for what?

The compressor is driven by what?

At what maximum psi is it not necessary for the compressor to pump air?

Which statement is false? A basic air brake system capable of stopping a vehicle has main components, including...

When enough friction is created between the brake lining and the drums, what happens?

When weight and speed are both doubled, the braking force must what in order be to be able to stop in the same distance?

What is meant by the unloading stage?

The heat produced is absorbed by what?

Compressed air is used to transmit what in an air brake system?

What is the source of compressed air called?

If the vehicle had six wheels, each wheel would have to provide how much of the braking force?

The friction between brake drums and linings generates what?

The time it takes from the momenta hazard is recognized to the time the brake is applied is approximately how much?

Braking systems use devices to gain a mechanical advantage with the most common device for this purpose being what?

Where does the heat that the brakes generates go to?

Which statement is false? Stopping distance consists of..,

What is referred to as brake lag?

If the speed is doubled, the braking force must be what in order to stop in the same distance?

Too much heat in the brakes could result in what?

If the weight is doubled, the braking force must be what to be able to stop in the same distance?

The distance required to stop a vehicle depends on what?

Most brake linings operate best at around what temperature?

The amount of heat the brake drums can absorb depends on what?

At what minimum psi is it not necessary for the compressor to pump air?

What controls the minimum and maximum air pressure in the system by controlling when the compressor pumps air?