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 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. If a vehicle has a vehicle inspection report, the driver:

Should not look at the report and instead try to find any issues themselves.

Should take the vehicle to a mechanic.

Should review the report.

Should not conduct a pre-trip inspection and rely only on the report.

For the first step of a vehicle inspection, you should review the last inspection report on your vehicle, if there is one. The carrier should have repaired any problems noted on the report.

2. When carrying a wide load, you should:

Drive as fast as possible.

Obtain special permits and follow special rules, such as driving during certain hours.

Honk at other drivers to get them to move from the lane closest to you.

Drive on the shoulder.

Over-sized loads require special permits, may be allowed on the roads only at certain times, and may require special warning signs or equipment.

3. A poor balance of weight in a trailer:

Can make handling unsafe.

Improves traction.

Increases fuel efficiency.

Poorly balanced weight in a trailer can make handling unsafe. For example, either too little or too much weight on the front axle can make a vehicle difficult to steer. Weight should be distributed evenly from front to back and from side to side. It should be distributed as low as possible.

4. Hydroplaning:

Rarely happens to trucks.

Usually happens when vehicles are traveling at speeds above 65 mph.

Can occur with a minimal amount of water on the roadway.

Hydroplaning is an effect in which a vehicle's tires lose traction with the surface of the road and instead glide along a layer of water. There does not have to be a large amount of water on the road for this to occur. Hydroplaning can begin at speeds as low as 30 mph.

5. What is road rage?

Operating a motor vehicle with the intent of doing harm to others

Operating a motor vehicle that is deemed unsafe

Operating a motor vehicle that has not been inspected

Aggressive driving is defined as operating a motor vehicle in a selfish, bold, or pushy manner. Road rage is defined as operating a motor vehicle with the intent of doing harm to others, or the intent of physically assaulting another driver or their vehicle.

6. When making a lane change, your turn signal:

Should always be used.

Should only be used if there is traffic present.

Should only be used between dusk and dawn.

You must always properly signal before turning or changing lanes.

7. Blocking cargo:

Should never be done.

Should be done to prevent the shifting of cargo.

Can only be done with metal pieces.

Blocking and bracing are techniques to keep cargo from shifting in transit. A piece of cargo should be blocked to its front, back, and/or sides to prevent movement.

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