Nebraska DMV CDL General Knowledge Quick Practice Test 4

Nebraska DMV CDL General Knowledge Quick Practice Test 4 For 2024

CDL Class A, B or C. Complete CDL driver training course. All the questions in this test are from the official DMV written exam. You can use our free online tests to evaluate how likely you are to pass the official DMV test. Or you can just cut to the chase and increase your chances of passing by upgrading to Premium Membership and unlock official DMV tests. In addition, you will also receive a master cheat sheet which contains all your state’s DMV questions and answers. Premium membership also unlocks a smart tracker which keeps an inventory of all incorrectly answered questions for easy, fast and effective revision. Practice with our free tests or hit Upgrade button below for premium access and increase your chances of passing your DMV written exam.

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Quick Facts:

Number of Questions – 20

Passing Percentage – 80%

Test Type – Free Test

1. Air tanks usually hold enough compressed air:

For one stop before needing to be refilled.
For several stops before needing to be refilled.
For a day’s worth of braking.
For an unlimited number of stops.

2. The two indicators that determine when you should upshift are:

Engine speed and road speed.
Other trucks and driving conditions.
Timing and road position.

3. Tread depth in the major grooves on a front tire should be at least:

3/4 of an inch.
1/2 of an inch.
4/32 of an inch.
1/16 of an inch.

4. When traveling on a downgrade, a vehicle will:

Slow down.
Travel at the same rate as on level roadway.
Speed up.
Likely swerve to the right.

5. What is the number one cause of death and injury in a work zone?

Drivers speeding
Slow drivers
Animals crossing the road

6. When starting the engine of a truck with a trailer, you can tell that your vehicle's ABS is not working if:

The yellow light on the left rear of the trailer stays on.
The red light on the right side of the trailer flashes three times.
All the rear lights flash and then turn off.

7. When it is difficult to see and you are traveling near other drivers, you should:

Use high beam lights.
Use low beam lights.
Use only the clearance lights.

8. Tires of mismatched sizes:

Can be used only on a front axle.
Can be used only on a trailer's axles.
Should be corrected before driving.
Improve fuel economy.

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