Hawaii DMV CDL General Knowledge Quick Practice Test 4

Hawaii DMV CDL General Knowledge Quick Practice Test 4 For 2026

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. The air storage tanks:

Hold only enough air for one braking cycle.
Hold enough air for the brakes to be used several times if the compressor stops working.
Do not hold air unless there is an emergency.

2. When driving at highway speeds, you should watch the road about ____ ahead of your vehicle.

One block
100 yards
A quarter mile

3. You should always use at least ____ to secure cargo on a flatbed trailer.

One tie-down
Two tie-downs
Three tie-downs
Four tie-downs

4. When stopping, the brake pedal:

Should be pressed down quickly.
Should be pressed down gradually.
Should be lifted up quickly.
Should be lifted up gradually.

5. To prevent becoming an aggressive driver you should:

Increase your speed.
Make gestures at other drivers.
Give other drivers the benefit of the doubt.

6. A vehicle loaded with dirt or sand must be covered if:

Driving on a public roadway.
Fewer than six inches of freeboard are maintained.
The driver has held their license for less than one year.

7. An applicant will be denied a hazardous materials endorsement if they:

Are a U.S. citizen.
Are wanted for a misdemeanor.
Are wanted for certain felonies.
Already have a driver license.

8. Antifreeze helps to keep an engine functioning properly:

But only in cold weather.
But only in hot weather.
Regardless of the weather.
While minimizing the vehicle's fuel use.

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