FREE New Mexico CDL Doubles Triples Practice Test (2024)

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

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

2. The application pressure gauge:

protects the tank and the rest of the system from too much pressure.
tells you how much pressure is in the air tanks.
shows how much air pressure is being applied to the brakes.

3. How should you brake if your vehicle loses ABS?

Brake as you always have.
Pump the brake repeatedly
Step on and off the brake pedal several times

4. If your ABS fails:

the first step is to get the vehicle off the road and stop.
your tires might grab unexpectedly and you could lose control.
you will still have normal brake functions.

5. If you go twice as fast, your stopping distance will increase by:

6. When your vehicle starts to skid, you must take action to:

restore traction to the tires.
accelerate and countersteer.
use controlled braking.

7. Air tank drains:

are used to remove water and oil from the air tanks.
protect the tanks and the rest of the system from too much pressure.
should not be used in wet weather.

8. When preparing to make a right turn, you should NOT turn wide to the left as you start the turn. Why?

Turning wide to the left can cause your vehicle to tilt.
It makes the turn harder.
A following driver may try to pass you on the right.

9. Most heavy trucks with manual transmissions require ____ to change gears.

10. Rollovers happen when drivers:

NEW MEXICO CDL DOUBLES TRIPLES PRACTICE TEST