Class B Driving Test | New Jersey 2025 #2

Train for FREE online with our New Jersey class B license 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 CDL class B permit in 2025, 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 CDL class B requirements may vary from state to state.

Number of Question 50

Passing Score 40

Number of Tests 20

1 . A cargo cover that flaps in transit:

Is acceptable.

Allows air to get to the cargo to keep it cool.

Can tear away.

Can attract birds.

Cargo covers should not flap in the wind. A flapping cover could tear loose entirely, exposing the cargo, and potentially blocking your view or the view of other drivers.

2 . Convex mirrors:

Cannot be used on vehicles transporting hazardous materials.

Can replace flat mirrors.

Can be help a driver see a large area.

Are illegal in most states.

Convex mirrors are curved to provide drivers with wider views of the road than can be provided by flat mirrors. However, convex mirrors also make objects appear to be smaller and farther away than they really are.

3 . Which of the following is not an activity that causes a distraction?

Adjusting the radio

Adjusting the CD player

Eating

Checking your mirrors

Anything that takes your attention away from driving can be a dangerous distraction. This includes eating, drinking, smoking, or adjusting the vehicle's audio and climate controls.

4 . The driver of a commercial motor vehicle:

Can use any cell phone while driving.

Can only use a hands-free mobile phone while driving.

Can only use a cell phone on rural roads.

Can use a cell phone at night.

It is prohibited for CMV drivers to use hand-held mobile phones while driving.

5 . How much water must be on a road surface for a vehicle to hydroplane?

Usually several inches

A good amount, such as a large puddle

A small amount

None

Hydroplaning is an effect in which a vehicle's tires lose traction with the surface of the road and instead glide along a layer of water. There does not have to be much water on the road for this to occur.

6 . A thin layer of ice that forms on road surfaces is called:

White ice.

Black ice.

Green ice.

Blue ice.

Black ice is a thin layer of ice that is clear enough for the road surface to be seen through it. A road covered in black ice may look like it is merely wet. You should be very careful when temperatures are below freezing and the road looks wet.

7 . A commercial motor vehicle should:

Not be equipped with a fire extinguisher, unless transporting hazardous materials.

Not be equipped with a fire extinguisher, unless the vehicle will be traveling through remote areas.

Never be equipped with a fire extinguisher.

Always be equipped with at least one fire extinguisher.

Vehicles must be equipped with the appropriate emergency equipment. When inspecting a CMV, you should check for at least one fire extinguisher; spare electrical fuses, unless the vehicle is equipped with circuit breakers; and the appropriate warning devices to be used when the vehicle is parked.

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2025 New Jersey | Frequently Asked Questions

In New Jersey, to secure a CDL Doubles/Triples endorsement, you must already have a valid CDL. You'll need to pass a knowledge test specific to driving double and triple trailers. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and handling these vehicles. After passing the test, the endorsement will be added to your CDL.

To obtain a CDL Doubles/Triples license, you must first have a Commercial Driver's License (CDL). You'll then need to pass a knowledge test specific to driving double and triple trailers. This test covers topics like coupling and uncoupling, inspecting doubles and triples, and handling. After you successfully pass the test, the endorsement is added to your CDL.

While New Jersey doesn't require specific training for a CDL Doubles/Triples endorsement, it's recommended to get some practice. You must pass a knowledge test on handling these types of vehicles. Studying the CDL manual and taking practice tests can help. Some choose professional driver training schools to gain practical experience before the test.

Yes, to obtain a CDL Doubles/Triples endorsement in New Jersey, you must pass a knowledge test specific to driving double and triple trailers. The test covers topics such as coupling and uncoupling, inspecting doubles and triples, and handling. This is in addition to the general CDL written exam.

For the CDL Doubles/Triples endorsement in New Jersey, you don't have to perform a specific skills or driving test. The endorsement requires only a knowledge test. However, general skills like safe coupling and uncoupling, maintaining vehicle balance, and understanding the high rollover risk are crucial when operating these vehicles. Always refer to your state's CDL manual for complete information.

No, it's not permissible. In New Jersey, and across the U.S., driving double or triple trailers requires a Commercial Driver's License (CDL) with a Doubles/Triples endorsement. Operating these vehicles without the appropriate endorsement is illegal and can result in significant fines, penalties, and potentially loss of your CDL.

Yes, you can append the Doubles/Triples endorsement to your existing CDL. You don't need to initiate a new application for a CDL. However, you will need to pass the Doubles/Triples endorsement knowledge test and pay the required fee to add it to your current CDL in New Jersey.

Yes, there are limitations for drivers with a CDL Doubles/Triples endorsement. These include restrictions on the maximum length of trailers, adherence to specific coupling and uncoupling procedures, and understanding the handling characteristics of double/triple trailers. Violations can result in fines, penalties, or suspension of the endorsement or CDL.

In New Jersey, the maximum legal weight for a vehicle is 80,000 pounds, and the maximum length for a two-trailer combination is 58 feet. For a three-trailer combination, the maximum length is 65 feet. These limits can be exceeded only with special permits and under certain conditions. Always check specific regulations as they can vary.

Yes, there are specific safety guidelines for driving double/triple trailers. Drivers must ensure proper coupling and uncoupling of units, maintain safe following distance, and understand the high rollover risk. They should also be aware of the special considerations for longer combination vehicles, like the impact of "crack-the-whip" effects on stability and control.