New Jersey CDL General Knowledge Test (NJ) 5

5 out of 5 (93 votes)
80% Passing score
50 Questions
10 Mistakes allowed
As a New Jerseyan gearing up for the CDL General Knowledge test, our fifth NJ DMV practice test is an invaluable resource. This particular CDL practice test is structured with 50 NJ DMV written test questions and answers, mirroring the style and substance of the actual CDL test. To pass, it's essential to correctly answer at least 40 questions. Whether you're a first-time test-taker or looking to refine your knowledge, this New Jersey DMV practice test is a reliable tool. One of the key features of our CDL practice test is the immediate feedback provided for each question. Not only will you learn if your answer is correct or incorrect, but you'll also receive detailed explanations. This feedback is pivotal in understanding the material, helping you grasp the reasoning behind each correct answer. It's an effective way to learn from mistakes and solidify your knowledge. After completing this NJ CDL general knowledge test, a comprehensive summary of your performance is presented. This summary isn't just a score; it highlights the questions you missed and provides the correct answers. This feature is a powerful learning aid, allowing you to review and understand the areas needing improvement. The DMV practice test's design and content are closely aligned with the actual New Jersey CDL general knowledge test. The questions you'll encounter are representative of those on the real DMV written test, both in format and subject matter. This alignment ensures that you're not just practicing, but you're practicing effectively, familiarizing yourself with the types of questions and scenarios you'll face on test day. This NJ DMV general knowledge practice test serves as a stepping stone towards your goal of obtaining a CDL in 2026! It's a tool designed not just to test your knowledge but to enhance it, ensuring you're well-prepared and confident when it's time to take the actual DMV permit test!
FREE CDL Practice Test App
Pass your New Jersey CDL General Knowledge test with the NextDoorDriving app. Real questions and answers—100% free and ad-free.
Download on the App Store

Sample New Jersey CDL Test Questions - General Knowledge

Question 1

Which operators may qualify for a CDL exemption in New Jersey when the stated conditions are met?

  1. A Non-civilian operators of military equipment
  2. B Firefighters operating firefighting apparatus
  3. C Farmers hauling their own products and equipment within 150 miles of their farms
  4. D All of the above

Correct answer: D – All of the above

Each listed operator is covered by a recognized CDL exemption. The farm exemption is limited to farmers transporting their own products and equipment within 150 miles of their farms. The military exemption applies to non-civilian operators of military equipment, while firefighters are exempt when operating for the covered purpose.

Source: New Jersey Commercial Driver’s License Manual — Section 1, “Exemptions to CDL Requirements”

Question 2

Which statements correctly describe required hazardous-material placards on a transport vehicle?

  1. A They are displayed on each side and each end
  2. B Each square-on-point placard measures at least 9.84 inches on every side
  3. C They have a diamond, or square-on-point, shape
  4. D All of the above

Correct answer: D – All of the above

Required placards are displayed on each side and each end of the transport vehicle. A standard placard is a diamond-shaped square turned onto a point and must measure at least 250 millimeters, or 9.84 inches, on each side. Placards must also remain visible and legible from the direction they face.

Source: 49 CFR § 172.504(a) — General placarding requirements, 49 CFR §§ 172.516(a), 172.519(c) — Visibility and display of placards; General specifications for placards

Question 3

What roadway condition does a BUMP warning sign indicate?

This sign warns drivers to _____________.
  1. A A depression in the road
  2. B A sharp rise in the road profile
  3. C A minimum-speed zone
  4. D A low shoulder

Correct answer: B – A sharp rise in the road profile

A BUMP sign warns that there is a sharp rise in the roadway profile ahead. A DIP sign is used for a depression instead. The warning gives drivers an opportunity to recognize the change and adjust their speed as needed before reaching it.

Source: Manual on Uniform Traffic Control Devices, 11th ed., Rev. 1 — § 2C.26, “BUMP and DIP Signs (W8-1 and W8-2)”

Question 4

What is the preferred action when heavy fog severely reduces visibility?

  1. A Use high-beam headlights
  2. B Stop on the shoulder with only the parking lights on
  3. C Pull into a rest area or truck stop until visibility improves
  4. D Continue at the posted speed limit

Correct answer: C – Pull into a rest area or truck stop until visibility improves

The New Jersey CDL manual advises avoiding driving in fog when possible and preferably pulling into a rest area or truck stop until visibility improves. If continued travel is unavoidable, reduce speed before entering the fog and use low-beam headlights and fog lights. High beams reflect from the fog and can further impair visibility.

Source: New Jersey Commercial Driver’s License Manual — § 2.12, “Driving in Fog”

Question 5

In New Jersey, when must a funeral procession that takes more than five minutes to pass a point be interrupted for other traffic?

  1. A Only when an emergency vehicle approaches
  2. B As soon as cross traffic has a green light
  3. C Whenever another driver considers it safe
  4. D Every five minutes

Correct answer: D – Every five minutes

The law does not impose a blanket rule that a procession can never be interrupted. If a procession takes longer than five minutes to pass a given point, it must be interrupted every five minutes to allow traffic to pass. Drivers should wait for that authorized interruption rather than entering the procession on their own.

Source: N.J.S.A. 39:4-93 — Processions

Question 6

How should you respond to an aggressive driver?

  1. A Make direct eye contact
  2. B Copy the driver’s behavior
  3. C Accelerate to prevent the driver from passing
  4. D Do not react and move out of the driver’s way if possible

Correct answer: D – Do not react and move out of the driver’s way if possible

The New Jersey CDL manual says to make every attempt to get out of an aggressive driver’s way. Do not challenge the driver by speeding up, holding your lane competitively, making eye contact, or responding to gestures. If it can be done safely, report the vehicle description, license number, location, and direction of travel to police.

Source: New Jersey Commercial Driver’s License Manual — § 2.10.3, “What You Should Do When Confronted by an Aggressive Driver”

More New Jersey CDL Practice Tests
Other CDL Endorsements