AIR BRAKES CDL 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.
Most heavy vehicles require ________ change gears.
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triple shifting
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double clutching
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double shifting
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single clutching
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2.
Parking brakes are:
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not required on commercial vehicles with air brakes.
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required on all vehicles.
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not required on trailers.
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not required on buses.
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3.
If your trucks has a high center of gravity, which of the following is true for curves?
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You should slow down, as your truck can roll over at the posted speed limit for the curve.
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You should travel at the posted speed limit.
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Reduce your speed to a crawl.
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None of the above.
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4.
Slack adjusters:
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regulate the distance between the rear wheels.
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are available in four types: manual, automatic, robotic and analog.
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should move more than one inch where the push rods attach to them.
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regulate the distance that the air brake has to travel to apply friction to the wheel.
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5.
A low air pressure warning signal must come on when the air pressure in the tanks falls below:
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15 psi.
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10 psi.
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60 psi.
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100 psi.
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