CA CDL Combination Practice Test (2024)

1. To prevent a rollover, you should keep the cargo as close to the ground as possible and:

go slowly around turns.
keep an eye on your tires.
keep the vents clear so they work correctly.

2. When driving in a construction zone, if a construction worker is near the road, you should:

3. Tar in the road pavement rising to the road surface in very hot weather:

does not affect the road surface or driving conditions.
causes the road to become very slippery.
is very sticky and will slow down your vehicle.

4. When you park trailers without spring brakes, you should use wheel chocks:

to prevent air from escaping.
to keep the trailer from moving.
to prevent the transmission from shifting up.

5. Never drive with landing gear only part way up. Why?

It must be exactly 5 feet off the ground.
It may catch on railroad tracks.
It may be harder to use.

6. When looking at your cargo covers in the mirrors while driving, you must be aware that a flapping cover:

helps keep the cargo as close to the ground as possible.
can tear loose, uncovering the cargo.
keeps the cargo cool.

7. After starting the engine, the ABS light stays on. This means:

the ABS is not working properly.
the ABS is working properly.
the ABS is in Neutral.

8. Where are shut-off valves?

At the front and back of each trailer.
At the front of each trailer.
At the back of each trailer.

9. The only way to stop a front-wheel skid is to:

let the vehicle slow down.
countersteer.
supply more power to the drive wheels.

10. Headache racks:

help you keep weights within legal limits.
can blind other drivers.
protect you from being hit by your cargo.

In Partnership with Plumas County Library