Air Brakes CDL 25 Questions And Answers Set 02
1 / 10
Terms in this set
25
When using the brake pedal, what system applies and releases the brakes?
Service brake system
What does the governor on the air compressor control?
When air needs to be pumped into the air storage tanks.
On the supply pressure gauge, at what PSI should the air compressor shut off?
125
At what PSI does the air compressor kick on?
100 lbs PSI
What could happen if the alcohol evaporator is not full during winter driving?
Ice will build up in air lines, air tanks, and valves causing brake failure.
What is the required maximum PSI in the air tanks for the safety valve to work properly?
150 PSI
What does the brake pedal control with an air brake system?
The air pressure applied to the brakes.
What will excessive use of the brake pedal cause?
Loss of Air Pressure in the air tanks.
The most common foundation brakes on heavy vehicles are?
S-cam brakes
When pressing down on the brake pedal, the brake shoes or linings are pressed up against the inside of the, what?
Brake drum.