FREE MI CDL Doubles/Triples Test 2024 (Practice Test)

1. Most heavy-duty vehicles use:

2. Retarders:

reduce braking distance.
improve gas mileage.
help slow a vehicle, reducing the need for using brakes.

3. When backing, it is best to:

try to back in the direction of the drift.
use a helper whenever possible.
use only the passenger's side mirror.

4. The posted speed limit for a curve:

may be too fast for many trucks or buses.
is safe for trucks or buses, but it may be too fast for cars.
is safe for all vehicles.

5. Which of the following is a reason to cover cargo?

To protect the cargo from weather
To protect people from spilled cargo
All of the above.

6. If a load is 50 feet long, the minimum number of tie-downs required is:

7. If your trucks has a high center of gravity, which of the following is true for curves?

You should slow down, as your truck can roll over at the posted speed limit for the curve.
Reduce your speed to a crawl.
You should travel at the posted speed limit.

8. If you must drive slowly, how should you alert following drivers?

Use your emergency flashers if it is legal
Turn on your taillights
Flash your brake lights

9. Too little weight on the driving axles can cause:

10. Combination vehicles have __ air lines.

DOUBLES TRIPLES TEST MI - CDL PRACTICE TEST