Combination Vehicles Practice Test | New Jersey 2024 #2

Train for FREE online with our New Jersey CDL combination vehicle 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 combination 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 DMV requirements for issuing a combination license may vary from state to state.

Number of Question 20

Passing Score 16

Number of Tests 20

1 . To prevent a rollover, a driver should:

Keep cargo low.

Place cargo high.

Keep cargo loose.

Turn quickly.

Rollovers can happen when a combination vehicle is turned too quickly. To help prevent the risk of rollover, it is important to keep the vehicle's center of gravity low by loading cargo as close to the ground as possible.

2 . Which type of vehicle is most prone to the “crack-the-whip” effect?

A five-axle tractor semi-trailer

A three-axle tractor semi-trailer

A bobtail tractor

A triple trailer

Triple combination trailers are most vulnerable to the "crack-the-whip" effect.

3 . A tractor protection valve is:

A device that keeps air in the tractor or truck brake system, should the trailer break away or develop a bad leak.

A device that prevents theft.

A device that controls fuel levels.

A device that allows the battery to recharge efficiently.

On combination vehicles with air brakes, the tractor protection valve keeps air in the tractor or truck brake system, should the trailer develop a bad leak or break away from the tractor.

4 . Rollovers happen when:

You drive too slowly.

You are stopped.

You turn too quickly.

You plan an escape route.

Rollovers happen as a result of drivers taking turns too fast.

5 . If a trailer's spring brakes do not release when you push the tractor air supply control, you should:

Check the air line connections.

Release the pintle hook.

Replace the spring brakes.

Drive normally without checking anything.

It is important that all of your vehicle's equipment is in proper working condition before you begin a trip. If a trailer's spring brakes do not release when you push in the tractor air supply control, you should make sure the air line connections are properly attached and sealed.

6 . When traveling more slowly than 40 mph, maintain at least ____ of following distance per every 10 feet of your vehicle.

One second

Two seconds

Three seconds

Four seconds

At speeds below 40 mph, you should allow at least one second of following distance for every 10 feet of your vehicle. Follow the same formula when traveling at faster speeds, then add one additional second to your following distance. Remember that larger vehicles require more space to stop than smaller vehicles.

7 . What is another name for the service line?

The signal line

The cable line

The surplus line

The power line

The trailer service air line is also referred to as the control line or signal line.

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2024 New Jersey | Frequently Asked Questions

To acquire a CDL Hazmat endorsement in New Jersey, you must first have a valid CDL. Then, pass the Hazardous Materials Endorsement Knowledge Test at a Motor Vehicle Commission agency. You'll also need to undergo a TSA security threat assessment, which includes fingerprinting and a background check. Finally, submit the TSA approval to the MVC.

To obtain a CDL Hazmat license in New Jersey, you must already possess a Commercial Driver's License (CDL). You must also pass a Hazardous Materials knowledge test, submit to a federal security threat assessment, including fingerprinting and background check. In addition, you must be at least 21 years old and have no disqualifying criminal offenses.

When applying for a CDL Hazmat endorsement in New Jersey, you need to provide a valid CDL, proof of U.S. citizenship or appropriate immigration status, and identification documents. You will also need to complete the Hazardous Materials Endorsement Application and pass the Hazmat Knowledge Test. After passing a TSA security threat assessment, submit the approval to MVC.

Yes, there is a dedicated written test for the CDL Hazmat endorsement in New Jersey. It's known as the Hazardous Materials Endorsement Knowledge Test. This test assesses your understanding of transporting hazardous materials. You must pass this test before you can receive your Hazmat endorsement.

The written test for the CDL Hazmat endorsement covers a range of topics related to hazardous materials. These include identifying different types of hazardous materials, understanding shipping papers, using placards and labels, loading and unloading hazardous materials, handling emergencies, and following safety procedures. The test is designed to ensure drivers can safely transport hazardous materials.

Yes, there are extra charges associated with acquiring a CDL Hazmat endorsement in New Jersey. These include a fee for the knowledge test, a fingerprinting fee, and a TSA security threat assessment fee. The exact cost may vary, so it's recommended to check with the New Jersey Motor Vehicle Commission for current fees.

Yes, to obtain a CDL Hazmat endorsement in New Jersey, you must undergo a federal background check and fingerprinting. This is mandated by the Transportation Security Administration (TSA) to ensure that hazardous materials are transported safely. The TSA will review criminal, immigration, and mental health records as part of this process.

Yes, specialized training is required for the CDL Hazmat endorsement. Applicants must pass a written test that covers hazardous materials regulations and safety procedures. Additionally, they must undergo a TSA security threat assessment, which includes fingerprinting and a background check. There is no separate certification, but the endorsement is added to your CDL upon passing the test.

No, you cannot legally transport hazardous materials without a valid CDL Hazmat endorsement in New Jersey. This endorsement demonstrates that you have the necessary knowledge and training to handle and transport hazardous materials safely. Transporting hazardous materials without the proper endorsement can result in hefty fines and penalties.

Yes, you can add the Hazmat endorsement to your current CDL license in New Jersey. You don't need a new application for the CDL itself, but you do need to pass the Hazmat knowledge test, submit a fingerprint-based background check, and pay the associated fees to get the endorsement.