Missouri
CDL Practice Test

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Use this free site to practice for the Wyoming CDL test. You can take these practice test questions as many times as you like. Topics covered in the practice tests include gross weight, hazmat transportation, air brakes, and pre-trip inspection Class A rules. You will be presented with 40 questions and you must answer 34 questions correctly to pass.  There is a 50 minute time limit.  You may not go back once you answer a question.  Click the "Start Quiz" button below to begin.  Good luck!

1 / 40

You should decrease to a safe speed before entering a curve and then_____through it.

2 / 40

Why should you not use the trailer hand brake to straighten out a jack knifing trailer?

3 / 40

Select the true statement about emergency brakes:

4 / 40

Select the inappropriate way to test for the low pressure warning signal.

5 / 40

Your rig should be parked on__to uncouple double trailers.

6 / 40

How do you make sure the air lines are not crossed and the trailer brakes are working after supplying air to the trailer?

7 / 40

Select the vehicle that off-tracks the most.

8 / 40

On a bus, you may sometimes haul small-arms ammunition, emergency shipments of drugs, or hospital supplies. The total weight of all such hazardous materials must not be greater than:

9 / 40

On tandem axle for trailers, the sliding mechanism and locking device is:

10 / 40

Take extra caution when driving smooth bore tanks during:

11 / 40

The object that doesn't get checked at the side of the trailer is the:

12 / 40

Select the true statement in regards to quick steering movements and double trailers:

13 / 40

Which trailer is most likely to tip over due to the crack the whip effect?

14 / 40

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

15 / 40

Select which is not a mandatory emergency equipment:

16 / 40

Select the true statement in regards to managing the space to the sides:

17 / 40

The minimum tire tread depth for front tires is:

18 / 40

How often should you drain your air tanks?

19 / 40

Why should you test the tractor protection valve?

20 / 40

What do yo need to do before supplying air to the air tanks of the second trailer?

21 / 40

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

22 / 40

Which of the following is a necessary qualification for non-bulk packaging?

23 / 40

Which of the following types of emergency equipment must you have on your bus?

24 / 40

You should___when driving down a long steep hill.

25 / 40

Some school busses are marked with the LNG placard. What does LNG stand for?

26 / 40

Which of the following is the most important reason for doing a pre-trip inspection?

27 / 40

How do you know when your brakes are fading?

28 / 40

The interlock system for the brake and accelerator on a transit coach may be used:

29 / 40

A leak rate for a straight truck or bus air brake system should not exceed _____psi per minute when the engine is off and the brakes are released.

30 / 40

Select the true statement in regards to converter dollies:

31 / 40

Select the situation in which you should use the hand valve to park a combination vehicle.

32 / 40

When a substance in the materials table is written in italics it means :

33 / 40

The best way to test the low air pressure warning signal is to:

34 / 40

Which of the following would NOT be part of a standard vehicle inspection?

35 / 40

What are shippers trying to accomplish when they package the material?

36 / 40

Who is responsible for certifying on the bills of lading that the hazardous materials are prepared properly?

37 / 40

Which seats must have a seat belt:

38 / 40

Select the true statement in regards to stopping distance and speed:

39 / 40

Buses may carry small-arms ammunition labeled ORM-D, emergency hospital supplies, and drugs. However, buses must never carry:

40 / 40

The trailer should be lowered so that _____.

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CDL Category Practice Tests

CDL Practice Test

How To Get A Missouri Commercial Drivers License

All applicants must be of the legal age of 18 years old or older to apply for their intrastate CDL privileges. In order to participate in interstate driving and obtain a HazMat Endorsement, the applicant must be 21 years old or older.

All applicants must have a certified medical examiner’s certificate to be eligible for a CDL.

Any applicants that fall into any of the below descriptions are disqualified from obtaining their Missouri CDL.

  • Any driver who has restricted CDL driving privileges in another state.
  • Any driver who has a valid driver’s license from another state.
  • Any driver who’s license is currently suspended, revoked, or canceled.

All Missouri residents are required to complete both knowledge tests and skills tests in order to receive their CDL.

Endorsements 

T – Double or Triple Trailers
P – Passenger
N – Tank Vehicles
H – Hazardous Materials
X – Combination of HazMat and Tank Vehicle

Hit the Open Road

Missouri CDL License Test Tips

All applicants must pass a knowledge test to receive their CDL. Class B and C applicants must pass a 50 question exam. Class A applicants must pass a 70 question exam which includes questions about combinations. All endorsements require an additional knowledge assessment specific to the endorsement sought. Applicants must pass all required knowledge tests with a score of 80 percent or more.

In addition to the knowledge test(s), applicants will be required to pass a three-part practice skills test. This is a hands-on assessment of the applicant’s skills in pre-trip inspection, basic vehicle control, and on-road driving. All three parts of the assessment must be passed in order for the applicant to receive their CDL.

Additional Information

Information on the Missouri Department of Revenue

The Missouri Department of Revenue regulates the CDL license requirements in Missouri. To get more information contact them via:

Website: https://dor.mo.gov/drivers/commercial/cmv.php

Phone: 573.526.3669

 

Additional Missouri CDL Helpful Links

Please use the links below to access more valuable Missouri CDL testing resources and to learn more about practice driving tests for the state of Missouri.