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

Partly engaging the clutch before removing your foot from the brake pedal.

Placing the vehicle in reverse before moving forward.

Fully engaging the clutch before removing your foot from the brake pedal.

Placing the vehicle in neutral before moving forward.

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.

2. When driving under wet conditions, what does a lack of spray from other vehicles indicate?

Ice has formed on the road.

The pavement is dry.

The spray is caught on the underside of the vehicle.

The tires have soaked up all the moisture.

If the road appears to be wet but the wheels of other vehicles are no longer generating spray, ice has formed on the road. Drive with extra caution when operating on wet or icy roads.

3. If your tractor is equipped with ABS but your trailer is not, the ABS:

Will not be effective.

Will still improve your steering control.

Will make jackknifing easier.

Will allow others to see when you brake.

In a tractor-trailer combination, if the tractor is equipped with an Anti-Lock Braking System (ABS) but the trailer is not, the ABS will still improve the driver's steering control. The driver should keep an eye on the trailer and let up on the brakes if the trailer begins to swing out.

4. To ensure normal stopping power, drivers of vehicles equipped with a front brake limiting valve should:

Set the control to normal.

Set the control to the off position.

Set the control to neutral.

Keep the control at the halfway mark.

Some pre-1975 vehicles have a front brake limiting valve, which has "normal" and "slippery" settings. The idea behind these valves was to limit the air pressure available to the front brakes when driving on slippery surfaces, and thereby reduce the danger of a front-wheel skid. Studies have found that this is not actually a concern, so if your vehicle has a front brake limiting valve, leave it in the "normal" position.

5. If required to complete a vehicle inspection report in writing, the report must be signed:

Every day.

Only if defects have been noted and certified to have been repaired.

Only if the repairs are estimated to cost more than $1,000.

Only if requested to do so by a law enforcement officer.

You must sign the previous vehicle inspection report only if defects were noted and certified to have been repaired or not needing to be repaired.

6. Most CDL holders have ____ licenses.

Excepted

Exempted

Non-excepted

Non-exempted

Most CDL holders who drive CMVs in interstate commerce are non-excepted interstate commerce drivers.

7. In an emergency, if you must leave the roadway to drive on the shoulder, you should:

Brake as hard as possible.

Steer so all wheels are on the shoulder.

Stop safely before returning to the road, if possible.

Stay on the shoulder until the next exit.

If a hazard requires you to drive onto the shoulder of a road, you should try to keep one set of wheels on the pavement to maintain better control of your vehicle. If possible, stay on the shoulder until your vehicle has come to a complete stop, then pull back onto the road when it is safe to do so.

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