FREE Utah Combination Practice Test (2024)

1. What is a pull up when referring to truck driving?

Using the speedometer to know when to shift up.
A specific maneuver used to decelerate smoothly in the exit lane.
When a driver stops and pulls forward to get a better position.
A driving maneuver used to pull your vehicle over to the side of the road and stop.

2. When driving a combination vehicle, which of the following 2 things will help you prevent a rollover?

Keeping cargo near the center of the vehicle and driving slowly on the highway.
Keeping cargo near the ground and driving slowly on the highway.
Keeping the cargo near the ground and driving slowly around turns.
Keeping cargo near the center of the vehicle and driving slowly on turns.

3. If you let air out of hot tires:

air pressure will increases, causing the tires to blow out.
the tires will cool off much sooner.
as the tire cools, the air pressure will be too low.
None of the above.

4. The trailer hand valve should be used only:

only in combination with the foot brake.
to test the trailer brakes.
when the trailer is fully loaded.
in driving to prevent skids.

5. When approaching a vehicle with a distracted driver, you should:

sound your horn.
change lanes quickly.
maintain your safe following distance.
quickly pass the vehicle.

6. Headlights:

must be turned on a half hour before sunset to a half hour after sunrise.
should be out of adjustment.
can blind other drivers.
should not be used when driving at night.

7. One way to prevent hydroplaning is to:

take curves at higher speeds.
have less than 4/32 inch tread depth in every major groove on front tires.
use the controlled braking method.
make sure you have enough tread on your tires.

8. If ABS is not working:

you should use the emergency brake.
you will still have brakes.
you will not have any brakes.
you should use the parking brake.

9. Before connecting the converter dolly to the rear trailer, make sure that:

the shut-off valves at the rear of the first trailer are open.
the kingpin rests on the fifth-wheel.
the trailer height is slightly lower than the center of the fifth-wheel.
the locking jaws rest on the kingpin.

10. You are checking the tractor-trailer connection to make sure it is safe and secure. The landing gear should be:

fully lowered.
fully raised.
raised slightly off the ground.
None of the above.

CDL COMBINATION PRACTICE TEST UTAH