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The CDL general knowledge test is required to be taken by all CDL applicants. The Utah 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 Utah 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 UT 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. For safety during a trip, you should:
drive on the shoulder of the road.
use your senses to check for problems.
pull off the road and stop.
shift into a lower gear.
2. When driving at night you should:
use your high beams when it is safe and legal to do so.
keep the interior light on.
always use low beams.
All of the above.
3. You should not use your horn unnecessarily. Why?
The horn can startle other drivers, which could be dangerous.
On vehicles possessing air brakes, it uses up air pressure you may need to be able to stop
The horn on a vehicle wears out very quickly
All of the above.
4. Truck tractors with air brakes built after March 1, 1997, are required to be equipped with:
a rear backup camera.
anti-lock brakes.
hydraulic brakes.
5. The total weight of a single vehicle including its load is called:
Gross Vehicle Rating (GVR)
Gross Combination Weight (GCW)
Gross Vehicle Weight (GVW)
Gross Vehicle Weight Rating (GVWR)
6. If you are being tailgated, you should:
avoid quick changes.
avoid tricks like turning on your taillights or flashing your brake lights.
increase your following distance.
All of the above.
7. When making a turn, you should cancel your turn signal:
once the rear end of your cab has cleared the turn.
once you have completed the turn.
once more than half of your vehicle is round the turn.
once you have begun the turn.
8. When transporting a load, the cargo should be inspected:
after every break you take during your trip.
by a helper.
by your supervisor.
only after driving.
9. Which of these describes the proper braking technique when driving on a long and steep downgrade?
Release the brakes until your speed is 5 mph above your safe speed, then apply the brakes. When your speed has decreased to your safe speed, repeat the previous steps.
Apply the brakes until your speed has been reduced to 5 mph, then release the brakes. When your speed has increased to your safe speed, repeat the previous steps.
Apply the brakes. When your speed has been reduced to 5 mph below your safe speed, release the brakes. When your speed has increased to your safe speed, repeat the previous steps.
All of the above.
10. Which of these vehicles must come to a complete stop at railroad grade crossings?
Heavy equipment
School buses
Trucks carrying explosives
All of the above.
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UT CDL Knowledge Test

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