CDL Doubles Triples Practice Test (2024)

1. Which of the following statements about backing heavy vehicles is true?

The helper should stand where you cannot see the helper.
You should avoid backing whenever you can.
Always back as quickly as possible.
Back to the right side so that you can see better.

2. Hanging meat in a refrigerated truck can be:

a very unstable load with a low center of gravity.
a very stable load if properly distributed.
a very stable load with a low center of gravity.
a very unstable load with a high center of gravity.

3. The heavier the vehicle:

the less work the brakes must do to stop it.
the more work the brakes must do to stop it.
the higher the center of gravity will be.
None of the above.

4. When the temperature drops:

bridges will freeze before the road will.
bridges usually freeze after other parts of the roadway.
bridges will not freeze.
None of the above.

5. To prevent a rollover, the driver should:

pay extra attention to the coolant level.
make quick lane changes if possible.
drive slowly around corners, on ramps, and off ramps.
drive on the shoulder if possible.

6. If you are caught in strong winds, you should:

keep a strong grip on the steering wheel and slow down or pull off the roadway.
speed up while keeping a strong grip on the steering wheel.
immediately take your foot off the accelerator.
None of the above.

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

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

8. A red triangle with an orange center means:

Liquid tanker
Slow-moving vehicle
Law enforcement vehicle
The vehicle is hauling hazardous materials

9. If a vehicle is equipped with ABS, when you start the engine:

the trailer emergency brakes will come on.
the spring brakes will come on.
the wheels will lock up.
the ABS indicator light on the dash should come on and then turn off.

10. What is true about tire chains?

You must carry the at least 6 chains and extra cross-links.
You should watch the official video tutorial by the manifacturer before putting them on.
You should learn how to put the chains on before you need to do it in snow.
All of the above.

NV CDL DOUBLES TRIPLES TEST - PRACTICE TEST