AIR BRAKES PRACTICE TEST - NEW JERSEY
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The air brakes endorsement applies to applicants who wish to drive a vehicle with air brakes in Class A, B, or C CDL. 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. Take this NJ CDL practice test now to prepare for the actual air brakes test!
1.
The stop light switch:
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tells you when you need to use your parking brake instead of the service brake.
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turns on the brake lights when you put on the air brakes.
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warns you when the air supply pressure drops below 55 psi.
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should be used to fend off tailgaters.
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2.
The ________ brake system applies and releases the brakes when the driver uses the brake pedal during normal driving.
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emergency
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anti-lock
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parking
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service
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3.
Tar in the road pavement rising to the road surface in very hot weather:
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does not affect the road surface or driving conditions.
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causes the road to become very slippery.
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is very sticky and will slow down your vehicle.
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might get in your engine.
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4.
To test the air leakage rate, with a fully-charged air system you should ____________ and time the air pressure drop.
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turn off the engine, release the parking brake
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check the air compressor's drive belt, chock the wheels
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release the parking brake, leave the engine running
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put alcohol into the air system, run the engine at a fast idle
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5.
If are being followed closely, you should:
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increase your following distance.
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change lanes quickly.
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flash your brake lights.
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decrease your following distance.
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