CDL General
Knowledge Test

5

This is the Commercial Vehicle Driver's License Test covering General Knowledge.  You will be presented with 40 questions and you must answer 34 questions correctly to pass.  There is no time limit.  You may not go back once you answer a question.  Click the "Start Test" button below to begin.  Good luck!

1 / 40

Which of the following are some suspension system defects?

2 / 40

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

3 / 40

What can you do at an accident site to help avoid another accident?

4 / 40

How often should you check your cargo?

5 / 40

Where should you place your warning devices if you must stop on a one-way or divided highway?

6 / 40

The most important hand signal you should agree on with a helper is:

7 / 40

Which contains more alcohol: a 12-ounce glass of 5% beer, a 5-ounce glass of 12% wine or a 1 1/2-ounce shot of 80 proof liquor?

8 / 40

Which of the following should you NOT do if you experience a tire failure?

9 / 40

What is NOT one of the four skill areas that operating a commercial vehicle requires?

10 / 40

What is the best way to see the sides and rear of your vehicle?

11 / 40

The method for testing hydraulic brakes for leaks is to _____.

12 / 40

To maintain alertness during the trip, drivers should:

13 / 40

Always try to back toward the driver's side because

14 / 40

When driving in very hot temperatures, you should:

15 / 40

What is the correct number of red reflective triangles that you should carry?

16 / 40

The two main things to look ahead for while driving are _____.

17 / 40

The act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others is known as.

18 / 40

Under which two special conditions should you downshift?

19 / 40

In the event of an accident you should remember to do the following EXCEPT:

20 / 40

You downshift automatic transmissions ______.

21 / 40

If you must stop on the shoulder of the road, you should place warning devices at all of the following places except...

22 / 40

Suspension systems:

23 / 40

A commercial motor vehicle (CMV) is defined as:

24 / 40

Which of the following is NOT an appropriate reason to flash your braking lights?

25 / 40

When accelerating:

26 / 40

Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?

27 / 40

Tires should should be replaced:

28 / 40

For any flatbed load you must have at least ____ tie downs.

29 / 40

At 55 miles-per-hour it takes about 6 seconds to stop a fully loaded truck and the braking distance is:

30 / 40

You should place the starter switch key into your pocket while you are performing the pre-trip inspection because:

31 / 40

The minimum tread depth for tires other than the front tires is ____.

32 / 40

What might happen if you swing wide to the left before you turn right?

33 / 40

In the event of a tire failure you should...

34 / 40

Before transporting a sealed load, you must check:

35 / 40

The manual says you should look _____ ahead while driving.

36 / 40

Which of the following is NOT an important reason to look far ahead when you are driving?

37 / 40

What is a common cause of tire fires?

38 / 40

When backing, what is the best method to use to avoid blind spots?

39 / 40

Which of the following is NOT a basic step to be taken at a crash scene?

40 / 40

How should you know when to shift?

Your score is

The average score is 75%

4.6/5 - (10 votes)

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