FREE ME CDL Doubles Triples Practice Test (2024)

1. Doubles/triples are:

less stable than other CMVs.
easier to drive than other CMVs.
usually faster than most CMVs.

2. ABS helps you:

3. 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:

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.

4. Over-length loads:

require special transit permits.
may require special equipment such as "wide load" or flags.
All of the above.

5. Large vehicles take longer to stop when they are:

empty.
heavily loaded but not fully loaded.
fully loaded.

6. If there is a fire in your vehicle, do NOT:

7. Foundation brakes are used:

8. If your vehicle has air brakes, to check that air flows to all trailers:

watch each trailer’s air gauge for a drop of 25 psi.
pull gently on the trailer with the tractor.
go to the rear of the second trailer and open the emergency line shut-off.

9. Emergency equipment is:

optional.
only required when transporting hazardous materials.
required.

10. If you must stop on a one-way or divided highway, you should place warning devices _______ toward the approaching traffic.

MAINE DOUBLES TRIPLES PRACTICE CDL TEST