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 four possible answer choices. Test questions come from the New Hampshire CDL Driver’s Guide. 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. If asked to sight-side back your vehicle into an alley, you should first:

Explanation
If you are asked to alley dock, you should first pull past the alley and stop your vehicle in a position that is parallel to the outer boundary. From there, you should back your vehicle entirely into the alley parking area. Your vehicle should be parked in a straight position within the boundaries of the parking space.

2. To ensure that you do not slow down traffic when driving a large truck, you should:

Explanation
If a heavy load prevents your vehicle from keeping up with the speed of other traffic, you should stay in the right lane.

3. A tank endorsement is:

Explanation
Subject to certain conditions, a tank endorsement is required to operate a tank vehicle that is used to haul either liquids or gases.

4. If you’re not sure how to handle a fire, you should:

Explanation
If you are unsure of which method is appropriate to use to extinguish a fire, you should wait for firefighters to arrive and let them handle it. This is especially important when dealing with hazardous materials fires.

5. Some air brake systems use alcohol:

Explanation
Some air brake systems contain an alcohol evaporator. This device introduces alcohol into the braking system to inhibit the formation of ice.

6. Texting while driving is worrisome:

Explanation
When driving, texting is a particularly dangerous distraction because it distracts a driver both mentally and physically.

7. When using your turn signal, you should:

Explanation
Always begin signaling well in advance of a turn. This is the best way to ensure that other drivers do not try to pass you. Without using a turn signal, drivers may assume that you are merely slowing down or stopping when you are planning to turn.
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