New Jersey CDL Practice Test
10 New Jersey-specific questions + General Knowledge · Updated July 12, 2026
The New Jersey CDL General Knowledge test runs 50 questions at the federal 80% standard (miss up to 10). New Jersey is one of only 12 states offering the CDL knowledge test in Spanish — practica en español. This practice set leads with 10 questions specific to New Jersey — the state licensing rules (CLP validity, fees, intrastate age) that generic CDL prep skips — then fills with General Knowledge from the federally standardized material.
New Jersey's real CDL exam sections. Also take the Air Brakes and Combination Vehicles practice tests.
Answer each question to see the explanation. Your score is tallied against the real passing bar at the end.
1. What is the minimum age to apply for a New Jersey CDL?
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Correct answer: 18 years old
You must be at least 18 to get a New Jersey CDL. Federal rules still require you to be 21 before driving a commercial vehicle across state lines, so drivers aged 18–20 are limited to New Jersey (intrastate) driving.
2. A New Jersey CDL holder under age 21 may:
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Correct answer: Drive only within New Jersey, and may not hold hazmat or passenger endorsements
Drivers under 21 are restricted to intrastate commerce — driving within New Jersey only — and cannot receive a hazardous materials (H) or passenger (P) endorsement.
3. Before you can apply for a New Jersey commercial learner’s permit, you must already hold:
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Correct answer: A valid basic New Jersey driver license
A valid basic New Jersey (Class D) driver license is required before you can apply for a commercial learner’s permit, and the CLP must be accompanied by that license when you drive a commercial vehicle.
4. To qualify for a New Jersey CDL, your vision must be at least:
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Correct answer: 20/40 in each eye, with or without glasses, and you must recognize red, green, and amber
New Jersey requires 20/40 vision in each eye, with or without corrective lenses, and the ability to recognize red, green, and amber colors.
5. When you apply for a New Jersey CDL, what identification must you present?
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Correct answer: 6 Points of ID, including your Social Security card, proof of address, and proof of legal presence
New Jersey uses the 6 Points of ID system: you must present documents worth six points, including your Social Security card, proof of address, and proof of legal presence.
6. When must a New Jersey hazmat-endorsement applicant complete Entry-Level Driver Training (ELDT)?
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Correct answer: Before taking the hazmat knowledge test
Applicants for a hazmat endorsement must complete ELDT from a provider on FMCSA’s Training Provider Registry before taking their knowledge test. First-time Class A/B applicants must complete ELDT before the skills test.
7. How much does the New Jersey commercial examination permit (test receipt) cost?
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Correct answer: $125, non-refundable
The commercial examination permit costs $125 and is non-refundable. ($42 plus $2 per endorsement is the fee for the four-year CDL itself, paid after you pass.)
8. Once issued, a New Jersey commercial learner’s permit (CLP) is valid for:
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Correct answer: 180 days
A New Jersey CLP is valid for 180 days — shorter than the one-year federal maximum. It must be accompanied by your New Jersey driver license when you operate a commercial vehicle.
9. The New Jersey CDL general knowledge test is:
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Correct answer: A 50-question test requiring a score of at least 80% to pass
The MVC publishes the format: the general knowledge test has 50 questions, with separate additional tests for each endorsement, and you must answer at least 80% correctly — the federal CDL passing standard.
10. If you fail the New Jersey CDL knowledge test, how long must you wait before retaking it?
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Correct answer: Seven days
New Jersey imposes a mandatory seven-day waiting period before you can retake a failed CDL knowledge test — and federal rules require the retake to be a different version of the test.
11. A car ahead is drifting toward a freeway exit, then its brake lights come on and it brakes hard. This is a hazard because:
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Correct answer: The driver is uncertain and might suddenly return to the highway in front of you
The braking, uncertain driver might suddenly return to the highway. Right now the car is a hazard; if it cuts in front of you, it becomes an emergency. Plan an escape while it is still only a hazard.
12. The speed limits posted on freeway and turnpike off-ramps and on-ramps:
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Correct answer: May be safe for cars but too fast for larger or heavily loaded vehicles
Ramp speed signs may be safe for automobiles but not for larger or heavily loaded vehicles. Ramps that go downhill and turn at the same time are especially dangerous — be sure you are slow enough before the curved part.
13. Why are drivers whose vision is blocked considered a hazard?
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Correct answer: People who cannot see others may move into your path without knowing you are there
People who cannot see others are a very dangerous hazard. Watch for vans, loaded station wagons, rental trucks whose drivers are not used to limited vision, and in winter, vehicles with frosted, ice-covered, or snow-covered windows.
14. You can see only the rear or front end of a vehicle at a blind intersection or alley, but not the driver. You should:
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Correct answer: Assume the driver cannot see you and be prepared to stop
If you can only see the rear or front of a vehicle but not the driver, then the driver cannot see you. Be alert — the vehicle may back out or pull into your lane — and always be prepared to stop.
15. What clues warn you that a parked vehicle may be about to pull into traffic?
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Correct answer: Movement inside the vehicle, brake lights, backup lights, or exhaust
Parked vehicles become hazards when people start to get out or the vehicle suddenly pulls away. Watch for movement inside the vehicle, brake lights, backup lights, exhaust, and other clues that a driver is about to move.
16. Why are delivery trucks a hazard?
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Correct answer: Packages or open doors can block the driver’s vision, and drivers in a hurry may suddenly step out
Packages or vehicle doors often block a delivery driver’s vision. Drivers of step vans, postal vehicles, and local delivery vehicles are often in a hurry and may suddenly step out or pull into the traffic lane.
17. Pedestrians and bicyclists can be hazards because:
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Correct answer: They may have their back to traffic or wear headsets, hats, or umbrellas and not see or hear you
Walkers, joggers, and bicyclists may be on the road with their back to traffic and cannot see you; some wear headsets and cannot hear you. On rainy days, hats and umbrellas block their view and they may hurry without watching traffic.
18. Why are children a special hazard near the road?
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Correct answer: They tend to act quickly without checking traffic
Children tend to act quickly without checking traffic. Children playing with one another may not look, and someone selling ice cream is a hazard clue that children may be nearby and may not see you.
19. Why are people at the scene of an accident or a disabled vehicle a hazard?
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Correct answer: They often are not watching for traffic and may step or run into the road
People changing a tire or involved in an accident often do not pay attention to roadway traffic. Passing drivers stare at the scene, people run across the road without looking, and vehicles slow or stop suddenly.
20. What is a hazard clue that a driver may be confused?
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Correct answer: Sudden changes of direction or stopping, hesitation, or out-of-state plates near an interchange
Confused drivers change direction suddenly or stop without warning, common near interchanges and major intersections. Clues to tourists include car-top luggage and out-of-state plates; hesitation and frequent braking are clues to confusion.
📱 PermitPal in your browser has the full 356-question CDL bank plus New Jersey's state unit — mock exams in all three real sections (General Knowledge, Air Brakes, Combination) at the federal 80% standard. Free to start, $29.99 once. Also on the App Store and Google Play.