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The CDL general knowledge test is required to be taken by all CDL applicants. The Wyoming 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 Wyoming 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 WY 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. If you must stop on or by a one-way or divided highway, where should you place the three reflective triangles?
10 feet, 100 feet, and 200 feet in front of the vehicle.
10 feet and 100 feet toward the approaching traffic, and 200 feet in front of the vehicle.
100 feet and 200 feet toward the approaching traffic, and 10 feet in front of the vehicle.
10 feet, 100 feet, and 200 feet toward the approaching traffic.
2. Wheel rims that have had welding repairs:
should be placed in the front.
should not be used.
are safe.
None of the above.
3. If your vehicle catches fire while you are driving, you should:
increase your speed to put out the fire.
pull into a service station.
park in an open area.
immediately open the van or trailer doors.
4. The emergency equipment must include:
3 red reflective triangles
Charged and rated fire extinguisher
Electrical Fuses
All of the above.
5. A hazard is:
Something you can easily avoid.
Something you must stop for.
Any road user or road condition that is a possible danger.
A dangerous material.
6. Letting air out of hot tires:
will help relieve the extra pressure.
will cool the tires down.
will have no effect on the tires.
should not be done, because the pressure will be too low when the tires cool off.
7. When water collects on the road. your vehicle can:
stop suddenly.
None of the above.
8. Which of the following statements is true?
Carrying a properly charged and rated fire extinguisher will help prevent fires.
There is no way that short circuits due to damaged insulation can cause a vehicle fire.
Under-inflated tires will NOT cause a vehicle fire.
Poor cargo ventilation is a common cause of fire.
9. After starting the engine the coolant temperature should:
hold steady.
slowly decrease.
rise gradually.
rise quickly.
10. Which of the following will help a drinker sober up?
Fresh air
Drinking coffee
All of the above.
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WY CDL Practice Test

Number of questions: 50
Correct answers to pass:40
Passing score:80%
Number of questions: 50
Correct answers to pass:40
Passing score:80%
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