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Updated for December 2024
Based on 2024 NJ commercial driver's license manual

Free NJ CDL Pre-Trip Inspection Practice Exam 2024

This CDL practice test is a great place to start if you’re after the NJ Pre-Trip Inspection endorsement. Each of the 20 questions is based on the official 2024 CDL manual. The test is designed to prepare you for the Pre-Trip Inspection portion of your 2024 Commercial Driver’s License exam. There are several answer options, but only one of them is correct. Every time you answer a question, you’ll get immediate feedback with a detailed explanation, so you won’t need to wait until the end of the test to know the correct answers.

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Triple-checked for accuracy

What you need to know

6 min to complete

Available in EN and ES

Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.

What to expect on the actual NJ MVC exam

questions

correct answers to pass

80%

passing score

Helpful links

NJ DMV website

Official New Jersey CDL manual (2024)

List of questions (classic view)

What structure supporting the fifth wheel skid plate should be checked for cracks or breaks?
You pump the pedal three times and hold it down for five seconds, making sure that the pedal does not move. What are you inspecting?
What transmits power from the transmission to the drive axle?
What carries air or hydraulic fluid to the wheel brake assembly?
________ are gas or hydraulic devices that cushion the vehicle's ride and stabilize the vehicle.
What is the sliding mechanism and locking device for tandem axles on trailers?
What do you inspect to make sure that all are present and show no signs of looseness such as rust trails or shiny threads?
What should you check to be sure it is solid, clear of objects, and securely bolted to the tractor frame?
What maintains air pressure in the air brake system?
Which tires should have a minimum tread depth of 4/32 inch?
Which of the following can disengage the engine from the drivetrain?
What transforms steering column action into wheel action?
Make sure that the _________ are not cut, chafed, spliced, or worn, and not tangled, pinched, or dragged against tractor parts.
You are looking for puddles on the ground and dripping fluids on the underside of the engine and transmission. What are you checking for?
What should be fully engaged with no loose or missing pins in the slide mechanism of the sliding fifth wheel?
To improve visibility during severe or stormy weather, __________ must be secure, undamaged, and operating smoothly and correctly.
_________ should be clean with no dirt, illegal stickers, obstructions, or damage.
_________ are the brackets, bolts, or bushings that are used to attach the spring or air bag to the axle and vehicle frame.
If the wheel has a sight glass, check that the oil level is adequate. Otherwise, look for leaks around the
What releases the fifth wheel locking jaws so the trailer can be coupled?

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NJ CDL Pre-Trip Inspection Test

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Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated over a week ago

At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.

Here's an inside look at how we maintain the highest quality in our practice tests.

Content Creation and Verification Process

Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
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