FREE AZ CDL Combination Test - Practice Test 2024

1. When using a fire extinguisher, you should stay:

at least 10 feet away from the fire.
as close to the fire as possible, without getting burnt.
as far away from the fire as possible.

2. After coupling the trailer, begin raising the landing gear by using:

3. The center of gravity of a trailer should be:

4. Poor weight balance:

improves handling.
can make vehicle handling more difficult.
increases fuel efficiency.

5. When should you use the hand valve to park a combination vehicle?

6. Hydroplaning:

only occurs at extremely high speeds.
only happens when tire pressure is higher than normal.
can occur at speeds as low as 30 mph.

7. When coupling a tractor to a semi-trailer, after checking if the fifth-wheel is in proper position for coupling you should:

make sure the area around the vehicle is clear and the trailer wheels are chocked.
connect the electrical cord and check the air lines.
connect the air lines to the trailer.

8. If you get stuck on railroad tracks, you should:

have a helper push your vehicle.
stay in the vehicle and call for help.
get out of the vehicle and away from the tracks.

9. When inspecting the cargo, make sure it is:

piled up.
not overloaded.
secured properly for the first 50 miles after beginning a trip.

10. When checking your tires during a pre-trip inspection, which of the following is acceptable?

Dual tires that come in contact with parts of the vehicle
Tires made by different manufacturers
Cracks in the tires

ARIZONA CDL COMBINATION PRACTICE TEST