Final Fall 2024

Front

Primary brake circuits are commonly color coded as what color air lines?

Back

green

Front

What controls air system pressure by stopping and starting compressor loading?

Back

governor

Front

What color is the octagonal-shaped trailer supply valve used to control the tractor protection system?

Back

red

Front

What are brake drums made of?

Back

Cast Iron

Front

Heavily grooved or warped drums should be turned or replaced.

Back

Replaced

Front

Which of the following are the air couplers attached to the trailer hoses connecting the tractor and trailer air systems? Glad Hands, Pigtails, boosters, Hand Clamps, Air Glads

Back

Glad Hands

Front

What is the function of the air dryer in the air brake system?

Back

To remove moisture and contaminants from the air

Front

Only springs that lose their tension should be replaced. True or False?

Back

False

Front

What is the primary material used in the construction of brake pads?

Back

Friction Material

Front

What is the basic principle of air brake operation?

Back

Compressed air is used to apply and release the brakes.