PENNSYLVANIA CDL AIR BRAKES PRACTICE TEST
6.
In newer vehicles with air brakes, you put on the parking brake:
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moving the orange push-pull lever to the right.
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using a P-shaped, yellow control knob.
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using a diamond-shaped, yellow, push-pull control knob.
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placing the transmission in Park.
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7.
With the controlled braking method, you:
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apply the brakes as hard as you can without locking the wheels.
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apply the brakes all the way and release brakes when the wheels the lock up.
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push down on the brake pedal as hard as you can so that the wheels the lock up.
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None of the above.
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8.
Tractor and straight truck spring brakes will come fully on when the air pressure drops to a range of:
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20 to 45 psi.
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55 to 74 psi.
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30 to 35 psi.
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5 to 15 psi.
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9.
Before transporting sealed loads, you should check that:
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the load can be inspected.
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the seal numbers match the placard numbers.
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the load is properly secured.
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All of the above.
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10.
Air brakes are 3 different braking systems: service brake, parking brake, and _______ brake.
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foot
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emergency
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S-cam
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air storage brake
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