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 Connecticut 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. A driver can rely on front wheel braking to work:

On dry roadways only.

Under all conditions.

Under all conditions, except for snow.

Front wheel braking is effective under all road conditions. It is unlikely that you will experience a front wheel skid, even on ice.

2. To check the automatic transmission fluid level in some vehicles, you will have to:

Park your vehicle uphill.

Park your vehicle downhill.

Leave the vehicle running.

In some vehicles, it may be necessary to leave the engine running when checking the automatic transmission fluid level.

3. If an applicant does not receive an air brakes endorsement:

They cannot operate a vehicle with air brakes.

They can only operate a vehicle with air brakes in intrastate commerce.

They can only operate a vehicle with air brakes in interstate commerce.

If you wish to be licensed to drive a CMV with air brakes, you must pass the air brakes knowledge test and use a vehicle with air brakes for your skills test.

4. Air storage tanks:

Are not allowed on a vehicle.

Hold compressed air for the brakes.

Should be drained of excess air after every trip.

In an air brake system, the air storage tanks hold compressed air to be used by the brakes. The number and size of air tanks varies among vehicles.

5. If a driver begins to feel fatigued while driving, they should:

Continue driving.

Drink coffee.

Stop and rest.

Drive faster to finish the trip more quickly.

If you begin to feel drowsy while driving, the only safe response is to safely leave the road and get some sleep. Using artificial stimulants can be dangerous because they may cause extreme fatigue when they begin to wear off.

6. An encroachment is when:

A driver does not appear for their scheduled basic skills test.

A vehicle touches an exercise boundary line during the basic skills test.

A driver fails one section of the basic skills test.

An encroachment during the basic vehicle control skills test is when an exercise boundary line is touched or crossed by any portion of the applicant's vehicle. Every encroachment will be counted as an error.

7. When driving in fog, you should:

Use the windshield wipers.

Use the low beam headlights.

Use the high beam headlights.

Use the heater.

While it is best to entirely avoid driving in fog, you should turn on your low beam headlights if you must drive in foggy conditions. Using high beams is a bad idea because the lights will reflect off of the fog and back into your eyes, making the road and its surroundings even more difficult to see.

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