CDL TEST QUESTIONS WITH ANSWERS
100% ACCURATE.
You should know that your breaks are fading when? - ANSWERYou have to push
harder on the break pedal to control your down hill speed.
If the spring breaks are on, when should you push the break pedal? - ANSWERNever
Repeatedly pressing and releasing (fanning) the brake pedal may result in? -
ANSWERLoss of air pressure
The driver must be able to see a low pressure warning which comes on before pressure
in the service air tank falls below...... - ANSWER60 PSI
If your truck or bus has dual parking control valves, you can use pressure from a
separate tank to: - ANSWERTo release the emergency/spring/parking brakes to move a
short distance
If your truck has a dual air system and one of the systems is low on pressure: -
ANSWEREither the front or rear brakes will not be fully operational
The most important thing to do when a low pressure warning light comes on is to -
ANSWERStop and safely park as soon as possible
The brake pedal in a air break system - ANSWERControls the air pressure applied to
put on the brakes.
To check the free play of manual slack adjusters of S-Cam brakes, you should -
ANSWERPark on level ground, chock the wheels, release the parking brakes, and pull
on the slack adjusters.
Parking or emergency brakes of trucks and buses can be legally held on by _____
pressure. - ANSWERSpring
Emergency stab braking is when you: - ANSWERBrake as hard as you can, release the
brakes when the wheels lock, put on the brakes again when the wheels start rolling
The most common type of foundation brake found on heavy vehicles is the -
ANSWERS-Cam
With air brake equipped vehicles, the parking brakes should be used - ANSWERAny
time the vehicle is parked.
100% ACCURATE.
You should know that your breaks are fading when? - ANSWERYou have to push
harder on the break pedal to control your down hill speed.
If the spring breaks are on, when should you push the break pedal? - ANSWERNever
Repeatedly pressing and releasing (fanning) the brake pedal may result in? -
ANSWERLoss of air pressure
The driver must be able to see a low pressure warning which comes on before pressure
in the service air tank falls below...... - ANSWER60 PSI
If your truck or bus has dual parking control valves, you can use pressure from a
separate tank to: - ANSWERTo release the emergency/spring/parking brakes to move a
short distance
If your truck has a dual air system and one of the systems is low on pressure: -
ANSWEREither the front or rear brakes will not be fully operational
The most important thing to do when a low pressure warning light comes on is to -
ANSWERStop and safely park as soon as possible
The brake pedal in a air break system - ANSWERControls the air pressure applied to
put on the brakes.
To check the free play of manual slack adjusters of S-Cam brakes, you should -
ANSWERPark on level ground, chock the wheels, release the parking brakes, and pull
on the slack adjusters.
Parking or emergency brakes of trucks and buses can be legally held on by _____
pressure. - ANSWERSpring
Emergency stab braking is when you: - ANSWERBrake as hard as you can, release the
brakes when the wheels lock, put on the brakes again when the wheels start rolling
The most common type of foundation brake found on heavy vehicles is the -
ANSWERS-Cam
With air brake equipped vehicles, the parking brakes should be used - ANSWERAny
time the vehicle is parked.
