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

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

2 / 40

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

3 / 40

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

4 / 40

The best way to test if the spring brakes come on automatically is to:

5 / 40

What is a king pin?

6 / 40

Why should you cover cargo?

7 / 40

If a rider wants to bring a car battery or a can of gasoline or kerosene aboard your bus, you should:

8 / 40

What is a supply pressure gauge used for?

9 / 40

Which trailer should be the first one after the tractor?

10 / 40

An emergency escape ramp should be used _____.

11 / 40

Drivers who transport route controlled radioactive materials must carry a dated certificate of radioactive materials training. This training must have ocurred within the last:

12 / 40

Which of the following are possible causes of tire fires?

13 / 40

What are the 3 methods for securing a second trailer before coupling?

14 / 40

Select the true statement in regards to as why you should make sure the fifth wheel plate is greased as recommended:

15 / 40

How do you check the air flow to the last trailer?

16 / 40

This object should not be damaged, bent, or rusted through and be evenly centered with the tires and dual wheels evenly separated.

17 / 40

Select the part that is not a part of the drum brake:

18 / 40

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

19 / 40

Which of the following is a recommended procedure when unloading the students?

20 / 40

What is the brake system that applies and releases the brakes when the brake pedal is used?

21 / 40

What is a passive railway crossing?

22 / 40

Which of the following is a key steering component?

23 / 40

A placard is required for a combustible liquid at?

24 / 40

Buses are prohibited from carrying all of the following hazardous materials except:

25 / 40

Select the purpose of fanning air brakes:

26 / 40

When inspecting the ______you are making sure that the lines and hoses are not chafed, cut, pinched, or dragged against tractor parts.

27 / 40

What is the most important reason for doing a vehicle inspection?

28 / 40

What is the standee line?

29 / 40

This object should be free of shiny treads, rust, free of cracks and distortions.

30 / 40

What is the best way to prevent brakes form overheating while drive down a steep grade?

31 / 40

You should expect____when backing a tractor under a trailer.

32 / 40

The basic description of a hazardous material includes the hazard class, the identification number, and the proper shipping name. Which one must appear first on the shipping paper?

33 / 40

The emergency air line is _____and the service air line is____.

34 / 40

Select the factors that can cause your brakes to fade or fail:

35 / 40

This object should be checked to make sure that the cap(s) are on tight, that it is secure, and there are no leaks.

36 / 40

The gauge that indicates normal or increasing lubrication pressure to prevent engine seizure, failure or breakdown is:

37 / 40

How should the shut off valves at the rear of the trailer be when inspecting doubles?

38 / 40

The trailer height is correct for connecting a converter dolly to a second or third trailer when:

39 / 40

This item does not need to be checked during the cab check.

40 / 40

Your rig should be parked on__to uncouple double trailers.

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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.