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
186

CDL General Knowledge Test 5

1 / 50

You should use your mirrors to check

2 / 50

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

3 / 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

4 / 50

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

5 / 50

f you are transporting livestock,

6 / 50

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

7 / 50

In the event of an engine fire,

8 / 50

When driving baffled liquid tanks,

9 / 50

if you are driving a long distance, you should

10 / 50

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

11 / 50

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

12 / 50

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

13 / 50

A coupling device capacity is the

14 / 50

For electrical fires and burning liquids, use

15 / 50

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

16 / 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

17 / 50

You must keep shipping papers for hazardous materials

18 / 50

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

19 / 50

To prevent truck fires, you should inspect your vehicle

20 / 50

Which of the following about covering cargo is NOT true?

21 / 50

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

22 / 50

For cargo, blocking is

23 / 50

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

24 / 50

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

25 / 50

Dry bulk tanks and hanging meat

26 / 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

27 / 50

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

28 / 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?

29 / 50

Which of the following is true about drinking and driving?

30 / 50

Which of the following contains more alcohol?

31 / 50

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

32 / 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

33 / 50

Which of the following statements about tank vehicles is true?

34 / 50

The Gross Combination Weight Rating is the

35 / 50

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

36 / 50

To correct a drive-wheel braking skid you should

37 / 50

When transporting cargo, inspect the materials and securing devices

38 / 50

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

39 / 50

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

40 / 50

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

41 / 50

Which of the following statements about tie downs is true?

42 / 50

Outage is

43 / 50

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

44 / 50

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

45 / 50

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

46 / 50

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

47 / 50

Two possible causes of tire fires are

48 / 50

A tank vehicle with a high center of gravity

49 / 50

If your vehicle is involved in an accident, try to

50 / 50

Since you cannot inspect sealed loads, you

Your score is

The average score is 78%