Instructions

Knowledge Test Class A

This license is required for driving any legal combination of vehicles, with a gross combination weight rating of 26,001 pounds or more, provided the GVWR of a trailer exceeds 10,000 pounds 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 New Jersey 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 A CDL are: Hazardous materials, Tank, Passenger, HazMat and Tank, Air Brakes and School bus.

Number of Question 50

Passing Score 40

1. When traveling down a long downgrade, you should brake by:

Only using the brakes.

Mostly using the brakes and downshifting occasionally.

Downshifting and then using brakes.

Never using the brakes.

On a downgrade, you should use the braking effect of your engine as the principal way of controlling your speed. Save your brakes for additional slowing or stopping that may be required by road or traffic conditions.

2. If cargo on a flatbed trailer is 40 feet long, it must be secured by a minimum of:

One tie-down.

Two tie-downs.

Three tie-downs.

Four tie-downs.

On flatbed trailers and trailers without sides, cargo must be tied down. There should be at least one tie-down for every 10 feet of cargo. Regardless of the size of the cargo, at least two tie-downs must be used.

3. Sending text messages while driving:

May be done if the messages are short.

Is encouraged.

Is permitted if you are asking a question of your employer.

Is not permitted.

Sending and reading text messages while driving is prohibited.

4. During an applied leakage test, the maximum leakage rate for a single vehicle with air brakes is:

3 psi in one minute.

6 psi in one minute.

8 psi in one minute.

4 psi in one minute.

It is important to know the maximum air loss rate that is safe for your specific vehicle. A single vehicle with air brakes should have a leakage rate no higher than 3 psi in a minute during an applied leakage test.

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

Place as little weight as possible over the axles.

Place an appropriate amount of weight over the axles.

Not be concerned about how the weight is distributed.

Only place weight over the axles.

The weight of cargo in a trailer should be evenly balanced. Having too much or too little weight on an axle can interfere with proper control of the vehicle. Additionally, having too much weight on one axle can damage it.

6. When asked about the vehicle's oil during the vehicle inspection test, you must be able to do all of the following, except:

Indicate where the dipstick is located.

Show that the oil level is within a safe operating range.

Show that the oil level is above the refill mark.

Show that the oil level is below the refill mark.

During the vehicle inspection test, you must be able to indicate where the oil dipstick is located; show that the oil level is within a safe operating range; and show that the oil level is above the refill mark.

7. Pressing and releasing the brake pedal unnecessarily can:

Release air faster than it can be replaced.

Add more air to a brake system.

Make the brake pedal harder to depress.

Create a loud noise.

On a vehicle with air brakes, pressing and releasing the brake pedal unnecessarily may let air out of the braking system faster than the compressor can replace it. This may cause the system's air pressure to become too low and the brakes to stop working.

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