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 do you check when doing a visual inspection of the coupling?

2 / 40

Select the true statement in regards to the liquid inside of a bulk tank causing a tank truck to roll sideways.

3 / 40

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

4 / 40

You should check your mirrors while making a lane change:

5 / 40

Select the answer that is not a part of the braking process when driving a tractor-trailer combination vehicle that has ABS:

6 / 40

To find out if a shipment includes a hazardous material, you should:

7 / 40

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

8 / 40

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

9 / 40

Remember to____when connecting the converter dolly to the rear trailer.

10 / 40

Select the vehicle that off-tracks the most.

11 / 40

You should activate hazard lights within approximately how many feet before railroad crossing?

12 / 40

You should check that the following makes an audible noise:

13 / 40

How often should you check the cargo you are transporting?

14 / 40

Should the air pressure in the service air tanks fall below____the driver must be alerted via warning mechanism in the truck cab.

15 / 40

Liquid surge affects the handling of a tanker by:

16 / 40

Select the factor that is known to cause brakes to fail or fade. (more than one answer may be correct, but select only one)

17 / 40

What will probably happen if the converter dolly is still under the second trailer and the pintle hook is unhooked?

18 / 40

Which of the following is NOT a part of the steering system?

19 / 40

When should the trailer hand valve be used?

20 / 40

Select the statement that best explains the "crack-the-whip" effect.

21 / 40

How do you determine if slack adjusters need to be adjusted?

22 / 40

To decide which placards you need, if any, what three things do you need to know?

23 / 40

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

24 / 40

How do you check the coolant level?

25 / 40

The manual says you should look _____ ahead while driving.

26 / 40

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

27 / 40

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

28 / 40

When would a drive-wheel skid result in a jackknife when pulling doubles?

29 / 40

What gauge on the dashboard indicates electrical system charging rate?

30 / 40

Select what you should do before leaving the vehicle unattended:

31 / 40

Select the true statement in regards to a converter dolly:

32 / 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:

33 / 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:

34 / 40

If your bus has an emergency exit door, it must:

35 / 40

Signs of distracted drivers include:

36 / 40

The direction of liquid movement not prevented by baffles is:

37 / 40

This component should be checked that it is solid, securely bolted to the tracture frame, and clear of objects.

38 / 40

In what position should the converter dolly air tank drain valve be in for double trailer combination?

39 / 40

Select the statement that best describes what the trailer air supply control does:

40 / 40

It takes special care to drive tankers with liquid in them because:

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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.