Air Brakes Endorsement Test | New Jersey 2024 #2

Train for FREE online with our New Jersey CDL air brake test. The official exam test consists of several obligatory parts, with all of them checking your knowledge of different blocks of road rules. If you need to obtain a NJ Class A/Class B driver license in 2024, practice as much as possible. Free sample tests published on our website will help you check and improve your knowledge and boost your grades. Please bear in mind that the requirements for CDL may vary from state to state.

Number of Question 25

Passing Score 20

Number of Tests 20

1 . Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when:

Air pressure falls below 45 psi.

Air pressure falls below 20 psi.

Driving downhill.

Driving uphill.

Before driving a vehicle with air brakes, you should ensure that the spring brakes come on automatically when air tank pressure falls to a level between 20 and 45 psi. You can do this by chocking the wheels and releasing air from the braking system by stepping on and off the brake pedal. Once the pressure drops to an unsafe level, the parking brake valve should pop out and spring brakes should come on.

2 . Emergency brakes:

Are not required on trucks.

Are only required on trailers.

Are required on tractors.

Are optional.

All trucks, truck tractors, and buses must be equipped with emergency brakes and parking brakes. These brakes must be held by mechanical force.

3 . Truck tractors with air brakes that were built on or after March 1, 1997 are equipped with:

An extra set of brakes.

Voice-activated brakes.

Cruise control.

Anti-Lock Braking Systems (ABS).

Truck tractors with air brakes that were manufactured on or after March 1, 1997 are required to be equipped with Anti-Lock Braking Systems (ABS). ABS is required in any other type of vehicle with air brakes that was manufactured on or after March 1, 1998.

4 . Water and compressor oil are usually found in the compressed air within an air brake system. Water and compressor oil:

Are necessary for the proper function of the air brake system.

Should be added if low.

Should be removed regularly.

Are not concerns.

Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Manually operated air tank drains must be opened daily to remove this build-up.

5 . What happens if brakes become too hot?

They will become too smooth.

They will harden.

They may stop working.

The air compressor will kick in to cool the brakes

If brakes are overused, they may overheat and stop working. This is referred to as brake fade.

6 . Some air brake systems use alcohol:

To reduce the risk of ice forming in air brake valves.

To make the compressor run more efficiently.

To lubricate parts of the braking system.

To reduce the risk of rust forming on air brake valves.

Some air brake systems contain an alcohol evaporator. This device introduces alcohol into the braking system to inhibit the formation of ice.

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2024 New Jersey | Frequently Asked Questions

A CDL Class B license in New Jersey allows the holder to operate single vehicles with a Gross Vehicle Weight Rating (GVWR) of 26,001 pounds or more, or any such vehicle towing another not exceeding 10,000 pounds. This includes buses, farm labor vehicles, and trailers. It does not allow the operation of Class A combination vehicles.

A Class B CDL license in New Jersey allows the holder to operate vehicles such as city buses, tourist buses, segmented buses, school buses, delivery trucks, dump trucks, garbage trucks, utility trucks and any single vehicle with a GVWR of 26,001 pounds or more or such vehicle towing another not exceeding 10,000 pounds.

In New Jersey, to obtain a Class B CDL license, you must be at least 18 years old (21 for interstate driving), have a valid basic New Jersey driver’s license, pass a vision exam, and successfully complete a written knowledge test. You must also pass a road skills test in the type of vehicle you plan to drive.

In New Jersey, you must be at least 18 years old to qualify for a Class B Commercial Driver's License (CDL). However, you must be 21 or older if you plan to drive across state lines or transport hazardous materials.

While not always necessary, specific endorsements can be added to a Class B CDL license in New Jersey to allow the driver to operate certain types of vehicles. These include school buses, passenger vehicles, tank vehicles, and those carrying hazardous materials. Each endorsement requires passing additional tests.

The Class B CDL skills assessment in New Jersey includes a pre-trip vehicle inspection, a basic vehicle control test, and an on-road driving examination. These tests evaluate your ability to inspect your vehicle, control it during basic maneuvers, and drive it safely in various road and traffic conditions.

Yes, Class B CDL license holders in New Jersey are limited to driving single vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, or towing a vehicle not heavier than 10,000 pounds. They cannot operate a combination vehicle (Class A) unless they have the appropriate endorsement.

Yes, in New Jersey, the written Class B CDL test can be taken in languages other than English. The test is available in Spanish. However, federal regulations require all CDL holders to read and speak English well enough to communicate with the general public, understand highway traffic signs and signals, respond to official inquiries, and make entries on reports and records.

Yes, you can request test accommodations for the Class B CDL written exam in New Jersey if you have a disability. Accommodations may include extended time, a quiet testing location, or the use of a sign language interpreter. You will need to provide documentation of your disability and specify the type of accommodation needed when scheduling your test.

Yes, if you don't pass the Class B CDL written test in New Jersey, you can retake it. However, you must wait at least seven days before attempting the test again. There may also be additional fees for each retest. It's advisable to study the CDL manual thoroughly before retesting.