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 possible answer choices. Test questions come from the Virginia 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

Before you start the test, please answer the question below regarding your insurance status.

Without insurance you will not be able to drive in Virginia

1. When driving in winter, which of the following should receive extra attention in a pre-trip inspection?

Coolant and antifreeze levels

The air conditioning unit

The oil pressure

When doing a pre-trip inspection during the winter, you should pay extra attention to the coolant level and amount of antifreeze; the defrosting and heating equipment; the wiper blades and windshield washer; the tires and tire chains; the lights and reflectors; the windows and mirrors; the hand holds, steps, and deck plates; the radiator shuttles and winterfront; and exhaust system.

2. Strong winds usually cause the greatest issues for:

Lighter vehicles.

Heavier vehicles.

Flatbed trailers.

Strong winds can make it difficult for a driver to maintain control of their vehicle. Usually, this is especially true for drivers of lighter CMVs.

3. If a vehicle begins to hydroplane, the driver should:

Accelerate.

Release the accelerator and push in the clutch.

Pull in the clutch and brake.

If your vehicle begins to hydroplane, you can regain control by releasing the accelerator and pushing in the clutch.

4. What should be done to prevent cargo from sliding?

Blocking

Freezing

Gluing

The shifting of cargo in transit can make steering and handling difficult for the driver, so cargo should be blocked to prevent it from moving. Blocking should be used in front of, behind, and/or to the sides of a piece of cargo to keep it from sliding.

5. Of the following, which is not a recommended way to spot potential signs of trouble?

Watching the gauges

Using your senses

Checking critical items only at the beginning and end of a trip

During a trip, you should regularly make checks to ensure that your vehicle is operating properly. Check the instrument panel and gauges; look at your mirrors; and examine the tires, cargo, and lights. Use all of your senses and be alert for anything that could be an early indication of trouble.

6. Hydroplaning happens most often when:

A vehicle is traveling faster than 60 mph.

Tire pressure is too low.

Tire tread is too deep.

Hydroplaning is most likely to occur when driving on wet roads with tire pressure that is too low and tire tread that is too worn. If there is enough water on the road, hydroplaning can occur at speeds as low as 30 mph.

7. During the driving test, when asked to make a lane change:

You should not be concerned with other motorists.

You should use your turn signal and change lanes when safe.

You should make the lane change as quickly as possible, even if that means cutting off another driver.

When asked to make a lane change during the on-road driving test, you should make the proper traffic checks, use your turn signal, and smoothly change lanes when it is safe to do so.

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