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The CDL general knowledge test is required to be taken by all CDL applicants. The Missouri CDL test consists of 50 questions. To pass, you must correctly answer at least 40 questions (80%). The general knowledge test covers the contents of the Missouri CDL Manual.
All CDL applicants (Class A, B and C) must study the following sections: Driving Safely, Transporting Cargo Safely, Air Brakes (if you plan to operate vehicles equipped with air brakes), Vehicle Inspection Test, Basic Control Skills Test, Road Test. In addition, the Class A CDL test will include questions based on the Combination Vehicles section. Take this CDL practice test now to prepare for the actual MO general knowledge test!
To get your CDL, you must pass both the knowledge and skills tests. CDL knowledge tests include: General Knowledge, Passenger Transport, Air Brakes, Combination Vehicles, Hazardous Materials, Tanker Vehicles, Doubles/Triples, School Bus, Firefighter. Depending on what class of license (A, B or C) and endorsements you need, you must take one or more knowledge tests. A special endorsement is also required to drive certain types of vehicles. The following endorsements may be used with a Class A, B or C CDL: HazMat (H), Tank Vehicles (N), Tank Vehicles Transporting Hazardous Materials (X) and Passenger Transport (P). The School Bus endorsement (S) is only available for Class A or B CDL, and the Doubles/Triples endorsement (T) is only available for Class A driver's licenses.
1.
When should you downshift automatic transmissions?
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When going up steep grades
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When going around curves
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When going down grades
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2.
When meeting an oncoming vehicle at night, if the other driver does not put their low beams on, you should:
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slow down and look straight ahead in your lane.
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look slightly to the right to avoid looking directly at the lights of the oncoming vehicle.
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"get back at the other driver" by putting your own high beams on.
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3.
To avoid becoming an aggressive driver you should:
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give other drivers the benefit of the doubt.
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give other drivers your full attention.
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make gestures to other drivers.
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4.
In ideal conditions, if you are driving at 55 mph your vehicle will travel a minimum of _______ until you can bring it to a complete stop.
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419 feet
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209 feet
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250 feet
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5.
Front-end header boards:
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block the forward movement of your cargo.
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protect you from your cargo in case of a crash.
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All of the above.
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6.
When traveling with Division 1.1, 1.2, or 1.3 explosives, do not park within _____ of a building.
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300 feet
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50 feet
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150 feet
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7.
If your license to operate your personal vehicle is revoked or suspended:
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you cannot get a hardship license to operate a CDL.
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you can get a hardship license to operate a CDL.
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your CDL is not affected.
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8.
When checking the engine compartment in a vehicle inspection, you should check all of the following except:
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Engine oil level
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Shock absorbers
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Windshield washer fluid level
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9.
Black ice is:
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a thin layer of black ice.
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ice that makes the road look dry.
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None of the above.
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10.
Which of the following statements about driving in cold weather is true?
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You should use windshield washer antifreeze.
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An engine cannot overheat when the weather is very cold.
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Brakes will never fade or fail from excessive heat caused by using
them too much.
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