Pennsylvania DMV CDL General Knowledge Quick Practice Test 3

Pennsylvania DMV CDL General Knowledge Quick Practice Test 3 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. Mirror adjustment can only be checked properly if:

The trailer is straight.
There is no trailer.
The vehicle is on a slight incline.

2. During the pre-trip vehicle inspection test:

Applicants will not have to identify the ABS.
Windshield wipers are not to be addressed.
Shock absorbers only need to be checked on one axle.
The steering box should be checked for leaks.

3. Which of the following is not a part of an air brake system?

A service brake system
A parking brake system
An emergency brake system
An axle brake system

4. If asked by a law enforcement officer to take a test to determine your blood alcohol concentration (BAC):

You can refuse to take the test without a penalty.
You can refuse taking the test but will be required to pay a $50 fine.
You will lose your CDL if you refuse to take the test.

5. After a tire has been changed, the driver should stop after a short distance to:

Check the tightness of the lug nuts.
Ensure that the tire tread depth is good.
Ensure that the correct tire was changed.
See if rocks have gotten into the tread.

6. As part of the vehicle inspection test, a CDL applicant may be asked to:

Check the engine oil level.
Replace a tire.
Remove the alternator belt.

7. If you’re unfamiliar with the area in which you must back up, you should:

Get out of your vehicle and walk around the area to become more familiar with it.
Not use both side mirrors because it can be distracting.
Wait for someone else to back up in the area so you can see how they do it.

8. What color are ABS malfunction lamps?

Orange
Yellow
Green
Blue

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