Knowledge Test Class A #2
Class A Driving Test | New Jersey 2025 #2 Page 4 of 7
Train for FREE online with our New Jersey class A 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 A 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 A requirements may vary from state to state.
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22 . Stopping distance can be affected by:
Traffic.
Factors that can affect stopping distance include your vehicle's speed, its weight, and how slippery the road surface is.
23 . When making tight maneuvers, you should:
Open the cargo door.
Mirror checks should be a normal part of your scanning routine. It is particularly important to make frequent mirror checks when driving in close quarters.
24 . Why do you need to drain air tanks regularly?
To remove bad air from the tanks
Compressed air in an air brake system usually contains a certain amount of water and compressor oil. The water and oil can damage the brakes if left to accumulate in the system. Tanks must be drained regularly to remove this build-up.
25 . An example of mandatory emergency equipment is:
A supply of fireworks.
Mandatory emergency equipment includes: at least one fire extinguisher; spare electrical fuses (unless the vehicle is equipped with circuit breakers); and warning devices for parked vehicles (such as reflective triangles).
26 . To obtain a passenger endorsement, applicants must be at least:
25 years old.
You must be at least 18 years old to obtain a CDL. However, you must be 21 years old to drive in interstate commerce or to obtain a passenger or hazardous materials endorsement.
27 . A commercial motor vehicle should:
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.
28 . How many daily hours of sleep does an adult need to maintain alertness?
Four to five
Being properly rested is essential to the safe operation of a CMV. To maintain alertness, most people need eight to nine hours of sleep per night.
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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.
