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 four possible answer choices. Test questions come from the Michigan 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 Michigan

8. When driving on packed snow, you should reduce your speed by:

One-half or more.

About one-third.

About one-quarter.

Reduce your speed when traveling on surfaces that provide reduced traction. Reduce your speed by one-half or more when traveling on packed snow.

9. Cargo inside a trailer:

Does not need to be secured.

Should be stacked no more than three feet high.

Should be secured to prevent movement.

Cargo inside a trailer must be secured appropriately to prevent it from shifting in transit.

10. Broken suspension parts:

Are not a cause for concern.

Are extremely dangerous.

Cannot be identified.

The suspension system holds up a vehicle and its load while keeping the axles in place. Defects in this system are extremely dangerous.

11. When driving a truck requiring a CDL:

You do not need to wear a seat belt.

You are required to wear a seat belt, but only if transporting more than 500 pounds of cargo.

You must always wear a seat belt.

You must be properly restrained by a safety belt at all times when driving a commercial motor vehicle.

12. To avoid a hazard:

You should always steer to the left.

You may be able to drive onto the shoulder.

You should steer sharply in one direction.

In some emergencies, the best strategy for avoiding a hazard may be to drive onto the shoulder. Most shoulders are strong enough to support the weight of a large vehicle.

13. Radial and bias-ply tires:

Should be used together.

Should be used together on the front of a vehicle.

Should not be used together.

Radial and bias-ply tires should not be used together. All wheels on a vehicle should be the same style and equally-sized.

14. A slack adjuster should move no more than ____ from where it is attached to the push rod.

Two inches

Five inches

One inch

Before a trip, you should check each slack adjuster after parking, setting wheel chocks, and disengaging the parking brake. Pull the slack adjusters to make sure that they do not move more than about one inch from where the push rod is attached. If they move more than one inch, they may be out of adjustment and will need to be fixed.

Grade This Section