How many questions are on the CDL air brake test in NJ?
25 questions
To drive a vehicle with air brakes, you must pass the air brake component of the New Jersey CDL knowledge test. The NJ CDL air brakes test consists of 25 questions, and you’ll need at least 20 correct answers to pass (80%). The test covers the information found in the air brakes section of the New Jersey CDL Manual.
Do I need a CDL for air brakes in NJ?
If my vehicle has air brakes and does not weigh over 26,001 lbs., do I need a Commercial Driver License (CDL)? No, you only need a CDL if the vehicle weighs 26,001 lbs. or more, or requires a placard for transporting hazardous material, or if you will be carrying passengers.
How much is the CDL permit test in NJ?
$125
The test fee is $125. The knowledge test is a 50-question general test with additional separate tests for each endorsement. To pass the test you must answer at least 80% of the questions correctly.
How long should a truck hold air pressure?
When the engine is at operating RPM, the pressure should build from 85 to 100 psi within 45 seconds in dual air systems (if the vehicle has larger than minimum air tanks, the buildup time can be longer and still be safe. Check the manufacturerʼs specifications).
How fast should a truck build air pressure?
Air pressure build-up from 85 psi to 100 psi should take 45 seconds or less. While driving, observe the air pressure gauge during build-up to ensure proper air system operation.
How often should you drain air tanks CDL?
daily
Remember: Manual air tank drains must be drained daily in order to get rid of water and oil inside the air tanks. You may be asked about this on the written exam. Make sure you remember that the safety relief valve generally opens at 150 psi.
What questions are on the NJ CDL test?
You’ll answer 50 multiple-choice questions, complete with explanations and hints, that have been written using questions straight from the New Jersey Commercial Driver License Manual. You’ll also be quizzed on information you need to know about the latest laws from the New Jersey Motor Vehicle Commission.