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The CDL general knowledge test is required to be taken by all CDL applicants. The Mississippi 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 Mississippi 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 MS 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 during vehicle inspection a tire is too hot to touch, you should:
remain stopped until the tire cools off.
let air out.
immediately decrease air pressure.
make sure there is enough engine oil on the tires.
2. After a tire has been changed, you should:
stop a short while later and check that the nuts are tight.
deflate the tire to 15 psi.
wait at least 30 minutes before driving.
decrease tire pressure.
3. Which of the following statements about slippery roads is true?
On a wet road you should reduce speed by a half or more.
Shady parts of the road provide better traction than open areas.
The road will freeze before bridges will.
None of the above.
4. If an aggressive driver confronts you, you should NOT:
try to get out of their way.
try to let them pass.
ignore gestures.
make eye contact.
5. What is the minimum tread depth for front tires?
1/2 inch
3/8 inch
1/32 inch
4/32 inch
6. _______ is the act of operating a motor vehicle in a selfish, bold, or pushy manner, without regard for the rights or safety of others.
Aggressive driving
Defensive driving
Road rage
Distracted driving
7. If you have any detectable amount of alcohol under ___, you will be put out-of-service for ______.
.04% ; 48 hours
.08% ; 48 hours
.04% ; 24 hours
.004% ; 24 hours
8. On ramp/off ramp curves should be taken:
slightly above the posted speeds.
at the posted speeds.
slightly below the posted speeds.
well below the posted speeds.
9. A passive railroad crossing is one that:
does not have any type of traffic control device.
has a traffic control device installed at the crossing to regulate traffic.
requires you to stop and wait until the traffic control device installed at the crossing tells you to proceed.
has at least two traffic control devices installed at the crossing to regulate traffic.
10. If you are caught in strong winds, you should:
keep a strong grip on the steering wheel and slow down or pull off the roadway.
speed up while keeping a strong grip on the steering wheel.
immediately take your foot off the accelerator.
None of the above.
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MS CDL Practice Test

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