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

Which of the following is something the driver must watch for:

2 / 40

Select the first action to do when the low air pressure warning comes on:

3 / 40

For emergency braking to avoid a crash when driving a double trailer you should:

4 / 40

A trailer is at the right height to have the tractor backed up to it when:

5 / 40

What is the main difference between a portable tank and a cargo tank?

6 / 40

With the controlled braking method, you _____?

7 / 40

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

8 / 40

What must vehicles with air brakes have?

9 / 40

When you discharge an unruly passenger, you must choose a place that is:

10 / 40

What should you do before you begin to couple?

11 / 40

What does it mean when the safety valve releases air?

12 / 40

Your rig should be parked on__to uncouple double trailers.

13 / 40

Which of the following is a reason that shippers package material?

14 / 40

Which seats must have a seat belt:

15 / 40

Select when you should use the parking brake:

16 / 40

You should____in order to inspect the coupling.

17 / 40

What should you do if you start a trailer skid?

18 / 40

Within 3 minutes, this gauge pressure should build to 90 psi from 50 psi.

19 / 40

Upon what does the amount of liquid you can carry in a load depend?

20 / 40

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

21 / 40

Where should the safety catch for the fifth wheel locking lever be located for coupling to be complete?

22 / 40

There should be ___space between the upper and lower fifth wheel after coupling.

23 / 40

As the driver of a bus, how can you best avoid hindering other traffic on the highway?

24 / 40

How do you test your service brakes?

25 / 40

When should you check your mirrors for a lane change?

26 / 40

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

27 / 40

A shipper’s certification is best described as _____.

28 / 40

The parking brakes should be used____in air brake vehicles.

29 / 40

How much space should you see between the lower and upper fifth wheel when checking the coupling of a converter dolly?

30 / 40

When backing your vehicle, which of the following is NOT recommended

31 / 40

When checking the wheelchair lift, the things you should look for are:

32 / 40

A minimum tread depth of 2/32 inch is required for:

33 / 40

What is most likely to occur when driving double and a set of trailer wheels goes into a skid?

34 / 40

____is the most common type of foundation brakes used by heavy vehicles.

35 / 40

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

36 / 40

Bus drivers must have a commercial driver license if they drive a vehicle designed to seat more than:

37 / 40

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

38 / 40

In Column 1 the symbol "I" means:

39 / 40

Secure baggage and freight in ways that avoid damage and:

40 / 40

While completing the 1st component of the air brake check you are required to fully push down on the foot brake and _____.

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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.