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

Suspension systems:

2 / 40

Select when you should use the hand valve to park a combination vehicle.

3 / 40

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

4 / 40

Hazardous materials (that are not forbidden) carried on a bus must be:

5 / 40

Forward and back surge is powerful in this type of tanker.

6 / 40

You should be in the proper gear before going down a hill because:

7 / 40

Select the true statement about seeing ahead.

8 / 40

Which trailer should be the first one after the tractor?

9 / 40

Which of these is a good rule for backing a straight bus?

10 / 40

Which of the following is the proper definition of a cargo tank?

11 / 40

When should you drain air tanks that do not have an automatic tank drain?

12 / 40

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

13 / 40

Which of the following about the front tires on a commercial bus is true?

14 / 40

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

15 / 40

Select the correct description for a bulkhead tank.

16 / 40

Which of the following must drivers have in their possession while transporting class A or B explosives?

17 / 40

Take extra caution when driving smooth bore tanks during:

18 / 40

Select how you can tell if your vehicle is equipped with an anti-lock braking system:

19 / 40

What is a supply pressure gauge used for?

20 / 40

What is the most important reason for doing a school bus inspection?

21 / 40

Your engine runs a pump when you are delivering compressed gas. Should you turn off your engine before or after you unhook the hoses after finishing that delivery?

22 / 40

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

23 / 40

Select the true statement about slack adjusters:

24 / 40

Vehicle handling can become unsafe if the weight is not properly balanced. Hard steering can be caused by:

25 / 40

When approaching railroad tracks, stop your bus:

26 / 40

At what "cut out" level does the governor stop pumping air?

27 / 40

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

28 / 40

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

29 / 40

The designation RQ identifies the material's:

30 / 40

The method used to make sure the spring brakes will come on automatically is to:

31 / 40

The two main things to look ahead for while driving are _____.

32 / 40

When you have a major leak in the service line and put on the brake, the service air pressure will escape and cause the:

33 / 40

At what pressure is the safety valve in the air compressor tank set to open?

34 / 40

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

35 / 40

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

36 / 40

Select the true statement about speed and stopping distance.

37 / 40

Make sure____when the front trailer supports are up and the trailer is sitting on the tractor.

38 / 40

Select the true statement in regards to large combination vehicles taking longer to stop.

39 / 40

You should_____when the low pressure warning is activated:

40 / 40

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

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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.