FREE RI CDL Doubles Triples Practice Test (2024)

1. Which of the following will off-track the most?

The rear wheels of the last trailer.
The rear wheels of the tractor.
The front wheels of the last trailer.

2. When inspecting the coupling, how much space should there be between the upper and the lower fifth-wheel?

3. During a walk around inspection of a combination vehicle, drivers should check that:

the glide plate is securely mounted to the trailer frame.
all locking pins are present and locked in place.
All of the above.

4. Warnings on low bridges or underpasses:

are often posted, but sometimes they are not.
must be posted.
are always posted.

5. When coupling, you should:

be aware that wrong coupling and uncoupling can be very dangerous.
make sure the trailer wheels are not chocked.
make sure the trailer kingpin is bent.

6. Doubles and triples are:

more likely to turn over than other combination vehicles because of the "crack-the-whip" effect.
easier to drive than other combination vehicles.
less likely to turn over than other combination vehicles.

7. To warn drivers behind you when you see you'll need to slow down, you should:

8. If the air compressor is belt-driven, you should check the air compressor drive belt before each trip. The belt should be:

9. Weight that is loaded so there is a high center of gravity:

reduces the chance that the load will shift to the side or fall off.
causes greater chance of rollover.
makes a vehicle easier to handle.

10. It may not be safe to operate at legal maximum weights:

on two-way streets.
during bad weather or in mountains.
in hot weather.

RHODE ISLAND DOUBLES TRIPLES PRACTICE CDL TEST