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 Alaska 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. When starting from a stop:

A vehicle should shift to the right.

A vehicle should be put into third gear.

A vehicle should not roll back.

To avoid hitting anything behind you, make sure that your vehicle does not roll back when you start from a complete stop.

2. Traction is important in:

Safe braking.

Properly using turn signals.

Operating the horn.

You will not be able to brake or steer your vehicle without adequate traction. Ensure that your tires are in proper working condition before beginning a trip.

3. In hot weather, spots on the pavement where tar is bleeding:

Are very slippery.

Offer the same amount of traction as the rest of the roadway.

Offer more traction than the rest of the roadway.

Tar in road pavement often rises to the surface of the road, or "bleeds," in very hot weather. Watch for such areas because they can be very slippery.

4. Interstate carriers must have what information affixed to both sides of a CMV?

USDOT number

Model number of the truck

Destination

Federal Motor Carrier Safety Regulations (FMCSR) require carriers to affix the USDOT number to both sides of each CMV in their fleet.

5. When loading a trailer, it is important to:

Place as little weight as possible over the axles.

Place a well-balanced amount of weight over the axles.

Place weight over only the axles.

A load of cargo must be properly balanced. Placing too much weight over an axle can damage the axle and make it more difficult for you to steer. Placing too little weight over an axle can cause poor traction, also leading to difficult handling.

6. If you must back up, it is helpful to:

Drive as fast as possible to complete the maneuver quickly.

First walk the line of travel to look for obstacles.

Use only the passenger side mirror.

If you must back up, you should exit the cab and check your path for obstacles before beginning the maneuver. Drive as slowly as you can, checking your mirrors on both sides.

7. The weight of a truck:

Usually has no impact on stopping distance.

Is a major factor affecting stopping distance.

Is not as important as the type of cargo in determining stopping distance.

A vehicle's weight is an important factor affecting its stopping distance. The heavier a vehicle is, the more work the brakes will need to do to bring it to a complete stop.

Grade This Section