FREE North Dakota CDL Doubles Triples Practice Test (2024)

1. The ABS malfunction lamp on the instrument panel is:

2. Which of the following is NOT true?

ABS only comes into play when a wheel would have locked up because of over braking.
ABS won't compensate for bad brakes.
ABS will change the way you normally brake.
ABS won't compensate for poor brake maintenance.

3. The posted speed for a curve that may be safe for a straight truck:

is likely to be safe for a double or triple.
could be too fast for a double or triple.
is never safe for a double or triple.
can be ignored when driving a double or triple.

4. Your mirrors should be adjusted so that:

more than half of the mirror shows the vehicle.
a part of the vehicle is visible in the mirror.
the rear of the vehicle is visible in the mirror.
no part of the vehicle is visible in the mirror.

5. You are driving a double. Before entering traffic, you should:

make sure you have a large enough gap before entering or crossing traffic.
always come to a complete stop.
turn on your headlights.
assume there is enough room to merge into traffic.

6. The service line is also called:

7. Which of the following will NOT help you prevent rollover?

Using the controlled braking method.
Keeping the cargo as close to the ground as possible.
Driving slowly around turns.
All of the above.

8. Which of the following is NOT correct? Anti-lock brakes:

help drivers avoid skids caused by over braking.
help drivers avoid wheel lock up.
give drivers more control over the vehicle during braking.
require drivers to apply the brakes as hard as they can without locking the wheels.

9. If your ABS malfunctions:

you should immediately come to a complete stop.
the parking brakes will not work.
the service brake will not work.
you still have normal brake functions.

10. You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:

maintain your current speed, and apply the brakes when you reach 50 mph to gradually reduce your speed to 40 mph.
apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
increase your speed to approximately 45 mph, and then apply release the brakes.

NORTH DAKOTA CDL DOUBLES TRIPLES PRACTICE TEST