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 Nevada 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
Passing Score

1. Blocking a load:

Explanation
Blocking and bracing are used to prevent cargo from shifting in transit.

2. When crossing railroad tracks, you should:

Explanation
When crossing railroad tracks during the on-road driving skills test, you must not stop, switch gears, pass another vehicle, or change lanes while any part of your vehicle is in the crossing.

3. Stopping distance can be affected by:

Explanation
Stopping distance is affected by a vehicle's speed. The faster you are driving, the longer your stopping distance will become.

4. If you are being tailgated, you should:

Explanation
If you are being tailgated, it is best to allow more room to open up in front of your vehicle. This will help you avoid the need for sudden stops, which could result in the tailgater rear-ending you, and will make it easier for the tailgater to pass. Speeding up may only make things more dangerous by prompting the other driver to continue tailgating you at a higher speed.

5. If driving a vehicle with a manual transmission, you can prevent your vehicle from rolling backward when starting from a stop by:

Explanation
To prevent rolling backward when starting from a stop, you should partly engage the clutch before removing your foot from the brake. Apply the parking brake whenever necessary to prevent your vehicle from rolling back.

6. When conducting a vehicle inspection, you will need to identify all of the following, except:

Explanation
During the vehicle inspection test, you must check the power steering belt, water pump belt, alternator belt, and air compressor belt for snugness, cracks, or frays. If any of these components are not belt-driven, you must tell the examiner which one(s), and verify that they are operating properly, mounted securely, and not damaged or leaking.

7. What is another name for front-end header boards?

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