20 Tests

CDL Class B Driving Test Online | Utah 2021

Train for FREE online with our Utah class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a UT CDL class B permit in 2021, practice as much as.. Read More

Train for FREE online with our Utah class B license test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a UT CDL class B permit in 2021, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that CDL class B requirements may vary from state to state.

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1 . For safety purposes, when should you turn off a retarder?

When driving in heavy traffic Retarders are mechanisms in some vehicles that help slow a vehicle and reduce the need for braking. However, using a retarder may cause wheels to skid when they have poor traction. Turn off retarders when traveling under wet, snowy, or icy conditions.

2 . The most important reason to inspect your vehicle before a trip is:

To fill up time. The most important reason to inspect your vehicle before a trip is to ensure the safety of yourself and others on the road. Safety inspections before every trip are required by state and federal laws.

3 . A one-way check valve:

Holds the spring brakes in position until they are used. A one-way check valve is required to be between an air compressor and the first main reservoir. This valve prevents air from escaping the system if the air compressor develops a leak.

4 . Tires of mismatched sizes:

Should not be used on a vehicle. Having tires of mismatched sizes on a vehicle is a problem that should be fixed if discovered during a vehicle inspection.

5 . If trying to correct a drive-wheel braking skid, the driver should:

To correct a drive-wheel braking skid, you should first remove pressure from the brake pedal to allow the locked wheels to begin rolling again. Quickly steer in the direction you want to go, then countersteer to prevent your vehicle from skidding in the opposite direction.

6 . A rear tire with a tread depth of 1/32 an inch is acceptable.

Tires need to have at least 4/32 of an inch of tread depth in every major groove on the front tires, and at least 2/32 of an inch of tread depth on other tires.

7 . The minimum age someone may be to apply for a CDL is 18 years old.

You must be at least 18 years old to apply for a CDL. However, you must be at least 21 years old to drive in interstate commerce, as well as to have a hazardous materials, passenger, or school bus endorsement.

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