Air Brake Practice Test 01

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

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

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

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

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?

Too much heat in the brakes could result in what?

Where does the heat that the brakes generates go to?

Most brake linings operate best at around what temperature?

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

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

What can be used to gain a mechanical advantage?

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

A compressor is designed to pump air into what?

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 referred to as brake lag?

What is the source of compressed air called?

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

The distance required to stop a vehicle depends on what?

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

What is meant by the unloading stage?

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

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

The compressor is driven by what?

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

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

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

The heat produced is absorbed by what?

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