Q.1
A low air pressure warning signal:
Q.2
Air brakes use ____ to function.
Q.3
During a static leakage test, what is the maximum leakage rate that is safe for a double combination vehicle?
Q.4
While driving downhill, you should brake until you reach a speed that is ____ below your safe speed, then release the brake pedal.
Q.5
You should ____ if the low pressure warning signal activates while you are driving.
Q.6
When using the controlled braking method in an emergency situation, you should:
Q.7
If air pressure drops to a level between ____, a visual low pressure warning signal should have already activated.
Q.8
If your tractor is equipped with ABS but your trailer is not, the ABS:
Q.9
What should happen before the air pressure in an air brake system tank falls below 55 psi?
Q.10
An air compressor governor will stop the compressor from pumping air once the air tanks have an air pressure level of:
Q.11
What can happen if parking brakes are used in very wet weather with temperatures below freezing?
Q.12
To make a stop in a vehicle equipped with air brakes, the driver should:
Q.13
What is often found in compressed air?
Q.14
The air storage tanks:
Q.15
An Anti-Lock Braking System (ABS):
Q.16
Air tank drains should:
Q.17
Foundation brakes are used:
Q.18
An Anti-Lock Braking System (ABS):
Q.19
If using the spring brakes while hauling a heavy load, a complete stop will:
Q.20
Before driving a vehicle with a dual air brake system, you must wait for the air compressor to build a minimum of ____ in both the primary and secondary systems.
Q.21
In a vehicle with dual parking control valves, once air pressure is lost and the spring brakes come on:
Q.22
When the brake pedal is pushed down, air brakes work:
Q.23
Air storage tanks:
Q.24
If braking at a speed of 55 mph while driving on dry pavement, the brake lag can add ____ to your vehicle's total stopping distance.
Q.25
____ make up the emergency brake system.
0 h : 0 m : 1 s