Knowledge Test Class B

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.. Read More

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 Wyoming Driver License Manual for Commercial and Heavy Vehicles. 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.

Number of Question
Passing Score

1. Rough acceleration:

Explanation
Always speed up smoothly and gradually so that your vehicle does not jerk. Rough acceleration can cause mechanical damage.

2. When driving, it is important that you:

Explanation
When driving, you should continually scan the road for possible hazards. Form plans about what you will do if the hazards develop into emergencies.

3. Mirrors should be:

Explanation
When driving, you should regularly check your mirrors, both to be aware of traffic and to check for problems on your own vehicle.

4. When checking your mirrors:

Explanation
Regularly check mirrors on both sides of your vehicle while driving. It is important to be aware of what is happening behind and to the sides of your vehicle.

5. When doing a pre-trip inspection, you should:

Explanation
Pre-trip inspections should be conducted in the same way every time. This will reinforce the steps, making it less likely that you will forget to inspect something important.

6. Poisonous fumes can enter a truck's cab due to:

Explanation
Defects in an exhaust system are very dangerous because they can cause poisonous fumes to enter the cab or sleeper berth.

7. When traveling down a long downgrade, you should brake by:

Explanation
On a downgrade, you should use the braking effect of your engine as the principal way of controlling your speed. Save your brakes for additional slowing or stopping that may be required by road or traffic conditions.
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