FREE ND Tanker Test (CDL 2024)

1. Excessive use of the service brakes results in overheating. Too much heat can:

cause the brakes apply unevenly.
cause the brakes to squeak.
make the brakes stop working.
cause the brakes to grab.

2. The tractor protection valve:

prevents the trailer from being accidentally released.
keeps air from going out if the air compressor develops a leak.
keeps air in the brake system should the trailer develop a bad leak.
keeps your wheels from locking up when you brake hard.

3. If you are being tailgated, you should:

make quick changes.
turn on your taillights.
increase your speed very gradually.
open up room in front of you.

4. When parked on the side of the road, you should:

activate the right turn signal.
turn off all lights.
flash your brake lights.
use the 4-way emergency flashers.

5. Brake lag is:

the distance your vehicle will travel, in ideal conditions, while you are braking.
the distance your vehicle will continue to travel, in ideal conditions, before you hit the brakes.
the amount of air pressure required to stop the vehicle.
the time required for the air brakes to work after the brake pedal is pushed.

6. Older trailers do not have spring brakes. If the air supply leaks away:

there will be no emergency brakes.
the ABS won't work properly.
the trailer will stop normally.
All of the above.

7. When checking the engine compartment in a vehicle inspection, you should check all of the following except:

Engine oil level
Coolant level in radiator
Windshield washer fluid level
Shock absorbers

8. When backing, you should:

back quickly.
use the mirrors on both sides.
back and turn toward the right side whenever possible.
only use mirror on the driver's side.

9. To make the brakes work, air brakes use:

10. In vehicles with air brakes, the two markings on a front brake limiting valve are:

CDL TANKER PRACTICE TEST - NORTH DAKOTA