Instructions

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 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 North Carolina 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.

Number of Question 50

Passing Score 40

1. Which of the following is not a crime that would disqualify an applicant from a hazardous materials endorsement?

Arson

Dishonesty

Robbery

Littering

There are a number of crimes that will disqualify a person from receiving a hazardous materials endorsement for seven years. Among these offenses are arson, robbery, and crimes of dishonesty, fraud, or misrepresentation. More serious crimes, such as murder, result in a lifetime disqualification.

2. To receive a hazardous materials endorsement, an applicant will be required to supply:

Their fingerprints.

Their shoe size.

A list of countries visited within the last 10 years.

Their employment history for the previous five years.

To obtain a hazardous materials endorsement, you will be required to submit your fingerprints and undergo a TSA background check.

3. Poor weight balance:

Improves handling.

Can negatively affect handling.

Will reduce fuel consumption.

Poorly balanced cargo can cause a vehicle to be difficult to handle. Keep weight distribution in mind when loading cargo.

4. The use of a hand-held mobile device while driving is:

Prohibited.

Acceptable if weather conditions are clear.

Permitted if use is work-related.

Using a hand-held mobile telephone while operating a CMV is both illegal and dangerous.

5. What is tire load?

The maximum air pressure of a specific tire

The maximum safe weight that a tire can carry at a specified pressure

The minimum safe weight that can be carried by a tire

The average weight of tires on a vehicle

Tire load is the maximum safe weight that can be carried by a tire at a specified pressure. This number is stated on the side of each tire.

6. What does the vehicle inspection report do?

Inform the motor carrier about problems that may need fixing

Ensure that the vehicle is inspected regularly

Keep people accountable for inspecting the vehicle

A vehicle inspection report keeps the carrier informed about any problems that need to be fixed.

7. Convex mirrors:

Cannot be used on vehicles transporting hazardous materials.

Can replace flat mirrors.

Can be helpful to see a wider area.

Are illegal to be used in most states.

Many large vehicles have curved, convex mirrors. Convex mirrors allow drivers to see a wider area than flat mirrors. However, they also make objects seem smaller and farther away than they really are.

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