FREE TX CDL Doubles Triples Practice Test (2024)

1. On any upgrade, _________ – the more you will have to use lower gears to climb hills or mountains.

2. Which of the following road surfaces freezes first?

3. When a combination vehicle goes around a corner:

the driver must keep the rear of your vehicle far away from the curb.
the front and rear wheels follow a different path.
the rear wheels of the trailer will never off-track.
All of the above.

4. Glad hands are:

5. You should always try to back toward the driver's side because:

you can more easily correct any steering errors.
you can watch the rear of your vehicle out the side window.
backing toward the left side is more dangerous.
None of the above.

6. At dawn, dusk, in rain or snow, to make yourself easier to see you should:

7. Retarders:

help prevent accidents by applying extra braking power to the non-drive wheels.
help slow a vehicle and reduce brake wear.
apply their braking power whenever you push on the accelerator.
All of the above.

8. Foundation brakes are used:

9. You should flash your brake lights to warn drivers behind you when:

you see a hazard that will require slowing down.
you see a bus stops in the roadway ahead to unload passengers.
you see you'll need to slow down.
All of the above.

10. If there is a cargo fire in a van or box trailer, you should:

enlist the help of bystanders.
keep the doors shut.
keep driving until you reach help.
open the doors, especially if your cargo contains hazardous materials.

TEXAS DOUBLES TRIPLES PRACTICE CDL TEST