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 will occur as a result of failing to perform all 3 components of the air brake check?

2 / 40

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

3 / 40

The Emergency Response Guide, ERG, can best be explained as _____.

4 / 40

In what position should the shut off valves on a the rear of the front trailer be in on a set of double trailers?

5 / 40

Select whether the following statement is true or false: Front wheel brakes are good to use in all conditions.

6 / 40

Select the statement that is not part of the air-brake system:

7 / 40

In safe driving, what does communicating mean?

8 / 40

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

9 / 40

Select the load of the trailer that will require the shorter distance to stop.

10 / 40

Select the true statement about emergency brakes:

11 / 40

When inspecting the_____you pump the pedals 3 times and then hold it down for 5 seconds feeling for no movement to occur.

12 / 40

This object releases the fifth wheel locking jaw to allow uncoupling.

13 / 40

A commercial motor vehicle (CMV) is defined as:

14 / 40

You should_____when checking the slack adjusters on S-Cam brakes.

15 / 40

Air pressure loss in a vehicle with a fully charged air system should be less than_______after the initial drop and brake applied.

16 / 40

What does the air compressor governor control?

17 / 40

At a railroad crossing, the bus is required to stop at the stop line. If there is no clearly marked stop line, what is the required minimum and maximum stopping distance?

18 / 40

The safety catch for the fifth wheel locking lever must be ____ for a coupling to be complete.

19 / 40

What is the minimum amount of distance you should maintain when driving at 50 mph in ideal conditions with a 100 ft twin trailer combination?

20 / 40

While driving at night, which lights should you use as often as you can?

21 / 40

Select the two things that are important in preventing a rollover:

22 / 40

You are driving a 60 foot truck at 55 MPH, how much space (in seconds) should you keep in front of you?

23 / 40

The gauge that needs to come up to normal levels after starting the engine within a few seconds is _____.

24 / 40

Shifting into a lower gear and removing your foot off of the accelerator to slow your vehicle is known as?

25 / 40

Select the reason as to why air tanks need to be drained:

26 / 40

There are 2 reasons as to why hauling liquids take special care. One reason is the ___center of gravity.

27 / 40

Select the true statement about emergency steering and tankers:

28 / 40

What is most likely to occur when driving a tanker truck and the front wheels begin to skid?

29 / 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.

30 / 40

An "A/W" the first column of the hazardous materials table means:

31 / 40

When should the trailer hand valve be used?

32 / 40

What action should you take before driving while drowsy?

33 / 40

Air tanks should be drained:

34 / 40

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

35 / 40

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

36 / 40

Which of the following statements about downshifting is NOT true?

37 / 40

To be sure that air is supplied to the second trailer:

38 / 40

What is the best way to figure out how many seconds of following distance you have?

39 / 40

You should check that the following makes an audible noise:

40 / 40

If you have riders on board, you must never refuel:

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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.