CDL General Knowledge Test (50 Questions)

CDL General Knowledge Test (50 Questions Answers): If you are preparing to take the Commercial Driver’s License Exam, you’ve visited the right page. Our CDL General Knowledge Test (50 Questions) is an essential part of your preparation for the exam. It’s been proven that the more questions you answer before taking the exam, the better you will ultimately do on the final test.

If you have enough time to prepare, take each test on separate days and bring them to a quiet room, under simulated test conditions. When you’re done, check your answers and then check your score. As you go through the CDL Quiz, you will find that there are some areas that may require additional review, based on your previous knowledge or the results of the CDL practice tests.

CDL General Knowledge Test (50 Questions)

CDL General Knowledge Test (50 Questions)

Test Name CDL Practice Test 2025
Language English
License CDL (Class A, B, or C),
Total Questions 50 Knowledge Practice Test
Test For Commercial Driver License
Test Preparation Driving Knowledge
Country USA
Explanation No
0%
0 votes, 0 avg
153

CDL General Knowledge Test 5

1 / 50

Outage is

2 / 50

____________ protect you from your cargo in case of collision and should be inspected for good condition.

3 / 50

The Federal Hazardous Materials Table names materials that are hazardous. If you are transporting any of these materials,

4 / 50

Which of the following statements is NOT true about an overloaded vehicle?

5 / 50

Which of the following is an effect of drinking and driving?

6 / 50

f you do not have a Hazardous Materials Endorsement on your Commercial Driver License, you can

7 / 50

Which of the following should you NOT do if you suspect that one of your vehicle’s tires has blown out?

8 / 50

Which of the following statements about a vehicle with a high center of gravity is true?

9 / 50

To turn quickly and safely in the event of a traffic or vehicle emergency, you should be prepared to countersteer. This means you turn the wheel

10 / 50

In the event of a cargo fire in a van or box trailer, you should

11 / 50

You should use your mirrors to check

12 / 50

Which of the following statements about driving an over-length, over- width, and/or over-weight load is NOT true?

13 / 50

You must keep shipping papers for hazardous materials

14 / 50

If your vehicle is involved in an accident, try to

15 / 50

Which of the following statements about tank vehicles is true?

16 / 50

Which of the following should you NOT do in the event of air brake failure where there was a major air leak in the system?

17 / 50

Which of the following is true about drinking and driving?

18 / 50

Which of the following statements about loading heavy or dense liquid is true?

19 / 50

You are driving a vehicle when two cars collide a short distance ahead of you. In order to safely avoid the accident, you should

20 / 50

Which of the following is a good thing to do when driving at night?

21 / 50

A coupling device capacity is the

22 / 50

In the event of an engine fire,

23 / 50

When driving baffled liquid tanks,

24 / 50

Poor weight balance can make vehicle handling unsafe. Hard steering is caused by

25 / 50

You see an accident on the road and wish to help. The steps you take to prevent further damage or injury are: protect the area, care for the injured, and

26 / 50

To correct a drive-wheel braking skid you should

27 / 50

Which of the following contains more alcohol?

28 / 50

Possession or use of drugs while on duty is prohibited by law except when

29 / 50

Dry bulk tanks and hanging meat

30 / 50

For electrical fires and burning liquids, use

31 / 50

Two possible causes of tire fires are

32 / 50

To prevent truck fires, you should inspect your vehicle

33 / 50

Shippers must write the name of the hazard class of hazardous products

34 / 50

When transporting cargo, inspect the materials and securing devices

35 / 50

A skid happens when tires lose their grip on the road. To prevent skidding, you should

36 / 50

To stop quickly and safely, you can use which of the controlled braking methods?

37 / 50

n some emergencies, you may have to drive off the road and onto the shoulder in order to avoid collision with another vehicle. If possible, you should avoid

38 / 50

if you are driving a long distance, you should

39 / 50

f you are transporting livestock,

40 / 50

The Gross Combination Weight Rating is the

41 / 50

How far ahead should a driver look ahead of the vehicle while driving?

42 / 50

Since you cannot inspect sealed loads, you

43 / 50

f an oncoming driver has suddenly drifted into your lane or if an obstacle suddenly blocks your path, you should

44 / 50

Which of the following about covering cargo is NOT true?

45 / 50

A tank vehicle with a high center of gravity

46 / 50

Which of the following statements about unbaffled or “smooth bore” liquid tankers is NOT true?

47 / 50

You have been driving for a long time and you are feeling tired. What should you do?

48 / 50

For cargo, blocking is

49 / 50

Which of the following statements about tie downs is true?

50 / 50

When a front-wheel skid occurs, the only way to stop the skid is to

Your score is

The average score is 77%