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. Pre-trip inspections should be done:

Differently each time in order to place emphasis on different items.

The same way each time to prevent you from forgetting anything.

Once in a while.

A pre-trip inspection should be completed in the same way before every drive. Consistency will help you learn all of the proper steps and decrease the likelihood that you will forget to check something.

2. During the driving test, the examiner will be scoring you on:

Attitude.

How quickly you arrive to your destination.

Your general driving behavior.

During the on-road driving test, the examiner will be scoring you on specific driving maneuvers, as well as your general driving behavior.

3. Which of the following may result in an applicant being denied a hazardous materials endorsement?

They are considered a security threat by the Transportation Security Administration (TSA).

They are a lawful U.S. citizen.

They work for a foreign company.

They do not have perfect vision.

You will be denied a hazardous materials endorsement, or lose an existing endorsement, if you renounce your U.S. citizenship; are not a lawful permanent U.S. resident; are wanted for, indicted for, or convicted of certain felonies; are judged mentally defective or are committed to a mental institution; or are deemed by the Transportation Security Administration (TSA) to pose a security threat.

4. A header board is used to:

Allow a driver to see behind them.

Protect the driver from moving cargo.

Provide extra storage capacity.

Prevent the driver from leaving the tractor.

Front-end header boards, also known as "headache racks," protect drivers from moving cargo in the event of a crash or emergency stop.

5. When performing a pre-trip inspection and looking into the fifth wheel gap, you should:

Make sure the locking jaws are open.

Make sure the locking jaws are fully closed around the kingpin.

Make sure the locking jaws are loose.

When inspecting a trailer coupling, you should make sure the fifth wheel locking jaws are closed around the shank of the kingpin, not the head of the kingpin.

6. When stopping in an emergency situation, you should:

Veer your trailer to the right and stop.

Stop in a straight line.

Veer your trailer to the left and stop.

If you need to make an emergency stop, you can use either the controlled braking method or the stab braking method. It's important to brake in a way that keeps your vehicle in a straight line but will still allow you to turn if necessary.

7. Passive railroad crossings:

Are controlled by flashing lights.

Are not controlled by any type of traffic control device.

Have gates that lower when trains are approaching.

Should never be crossed by a CMV.

Railroad crossings that are not controlled by any type of traffic control device are known as passive crossings. The decision to proceed across tracks at a passive crossing is entirely up to the driver.

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