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1/64 of an inch.
|
|
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1/32 of an inch.
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|
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2/32 of an inch.
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Tennessee CDL Permit Test - Knowledge Test Class B
(From the 2020 Tennessee CDL driver handbook)
| Number of questions: | 50 |
| Passing score: | 40 |
Directions:
This license is required for driving a single vehicle with a GVWR of more than 26,001 pounds, and a trailer not to exceed 10,000 pounds gross vehicle weight rating, or a vehicle designed to transport 24 or more people (including the driver). To receive this license, applicants must pass a 50-question test. To pass, applicants must answer 40 questions correctly. Each question has three or four possible answer choices. Test questions come from the Commercial Driver License Manual. Questions come from chapters covering: Introduction, Driving Safely, Transporting Cargo Safely, Air Brakes (if applicable), Pre-Trip Vehicle Inspection Test, Basic Vehicle Control Skills Test and On-Road Driving.. Endorsements that may be used with a Class B CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.
Passing grade —
10 or fewer errors
advertising
1.
The minimum acceptable tread depth for rear tires is:
2.
Distracted driving:
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Can only be caused by physical distractions.
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Can only be caused by mental distractions.
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Can be caused by physical and/or mental distractions.
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Can only be caused by cell phone use.
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3.
If you plan to transport hazardous materials, you will:
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Need to obtain a hazardous materials endorsement.
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Need to drive while using flashing lights.
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Need to wear a gas mask.
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4.
To use the stab braking method in an emergency situation, you should:
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Apply the brakes completely until the wheels lock up, release the brakes until the wheels start rolling, then repeat the process.
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Apply the brakes about halfway, but keep the wheels rolling.
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Fully apply the brakes, let the wheels lock up, and hold the brake pedal down, keeping the wheels locked until the vehicle stops.
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Apply the emergency brake.
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5.
When loading a trailer, it is important to:
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Place as little weight as possible over the axles.
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Place an appropriate amount of weight over the axles.
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Not be concerned about how the weight is distributed.
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Only place weight over the axles.
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6.
If you must leave the roadway and drive on the shoulder in an emergency situation, you should:
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Brake as hard as possible.
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Get both sets of wheels onto the shoulder.
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Stay on the shoulder until your vehicle has stopped, if possible.
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7.
An Anti-Lock Braking System (ABS) will:
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Shorten your stopping distance.
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Not change the way you apply the brakes.
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Allow you to drive faster.
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