California DMV CDL General Knowledge Quick Practice Test 4

California 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. If you need to travel down a hill, you should switch into a lower gear:

After you start moving downhill.
As you go downhill and pick up speed.
Before you start moving downhill.
Near the bottom of the hill.

2. Steering wheel play should be no more than:

10 degrees.
25 degrees.
50 degrees.
75 degrees.

3. When using road speed to know when to switch gears, you should:

Learn what speeds each gear is good for and shift up when necessary.
Watch other vehicles and try to keep pace.
Watch other trucks and shift when they shift.
Use the speed limit as a guide.

4. To make driving at night easier, you should:

Keep your interior light turned on.
Adjust the instrument panel lights as dimly as you can while still being able to read the gauges.
Not take a nap before driving.
Use only your low beam headlights.

5. What does the vehicle inspection report do?

Inform the motor carrier about problems that may need fixing
Ensure that the vehicle is inspected regularly
Keep people accountable for inspecting the vehicle

6. Most heavy-duty vehicles use ____ air brake systems.

Single
Dual
Triple
Quad

7. When checking your tires, which of the following is not an issue to correct?

Too much air pressure
Too little air pressure
Radial and bias-ply tires used together
Tread depth of at least 4/32 of an inch on the front tires

8. One way to prevent drowsiness while driving is to:

Drive alone.
Avoid regular exercise.
Get adequate sleep the night before the trip.

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