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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. Multi-speed rear axles and auxiliary transmissions are used:
to provide extra gears.
to make it easier to change gears.
reduce exhaust emissions.
to reduce brake wear.
2. If your vehicle has manual transmission, to know when to shift up:
you must use mirrors on both sides.
you can watch your tachometer, and shift up when your engine reaches the top of the range.
you should use a helper when you can.
you should release the accelerator, push in the clutch, and shift to neutral at the same time.
3. Which of the following statements about drugs is true?
All over-the-counter drugs are safe to use while on duty.
Some "controlled substances" are allowed to reduce fatigue.
Use of drugs can lead to traffic accidents.
Possession and use of a drug given to a driver by a doctor is never permitted.
4. Which of these statements is correct?
Others could be hurt or killed by cargo that falls off a vehicle.
Loose cargo can hurt the driver during a quick stop.
Loose cargo that falls off a vehicle can cause traffic problems.
All of the above.
5. Overloading can have bad effects on all of the following except:
Speed control
Exhaust system
6. Brake fade results from:
wet brakes.
excessive heat caused by using brakes too much.
using brakes in cold weather.
All of the above.
7. If you get stuck on the railroad tracks, the first thing you should do is:
try to move your vehicle until you see the train.
stay in your vehicle and call 911.
scream for help.
immediately get out of the cab and move away from the tracks.
8. As you approach a turn, do not coast unsafely. Unsafe coasting occurs when:
you downshift for less than the length of your vehicle.
your vehicle is out of gear for more than the length of your vehicle.
you downshift before making a turn.
you don't use turn signals before making a turn.
9. Which of the following statements about backing is NOT true?
You should use a helper when you can.
Backing toward the left side is very dangerous because you can't see as well.
You should get out of the vehicle and check your path if you are unsure.
You should use the lowest reverse gear.
10. If you get stuck on railroad tracks, you should:
have a helper push your vehicle.
check the engine compartment quickly.
stay in the vehicle and call for help.
get out of the vehicle and away from the tracks.
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UT CDL Practice Test

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