CDL AIR BRAKES PRACTICE TEST - NEW HAMPSHIRE
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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 Hampshire CDL knowledge test. The NH 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 Hampshire CDL Manual. Take this NH CDL practice test now to prepare for the actual air brakes test!
1.
What should you do to correct a drive-wheel braking skid?
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Stop braking, turn the steering wheel quickly, push in the clutch, and countersteer.
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Fully apply the brakes, turn the steering wheel quickly, push in the clutch, and countersteer.
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Turn in the same direction as the skid.
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None of the above.
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2.
Older trailers do not have spring brakes. If the air supply leaks away:
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there will be no emergency brakes.
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the trailer will stop normally.
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the ABS won't work properly.
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All of the above.
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3.
Supply pressure gauges tell you:
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when the air pressure in the tanks falls below 60 psi.
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when the pressure in the system drops below 60 psi.
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how much air pressure you are applying to the brakes.
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how much pressure is in the air tanks.
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4.
What factors can cause brakes to fade?
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Dirt roads and in unpaved yards.
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Slippery surfaces and shaded areas.
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Gravel and tar.
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Excessive heat and brakes out of adjustment.
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5.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Speed control
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Braking
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Weight limits
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Steering
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