CDL AIR BRAKES PRACTICE TEST - ARKANSAS
16.
Air tanks must be drained because:
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if one air system is low on pressure, the rear brakes will not be operating fully.
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if you don't drain the tanks yourself, your battery fluid may drain out.
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when you push the brake pedal, air is let into each brake chamber.
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compressed air usually has some water in it. The water can freeze in cold
weather and cause brake failure.
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17.
Empty trucks require _____ stopping distances because empty vehicles have ______ traction.
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less; less
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less; more
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greater; less
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greater; more
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18.
On front tires, tread should be at least:
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4/16 inch
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4/32 inch
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1/16 inch
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2/32 inch
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19.
Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
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pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle.
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shifting into neutral may help slow the vehicle.
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the parking brake should never used to slow the vehicle.
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All of the above.
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20.
When driving at night, you should:
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look directly at the lights of oncoming vehicles.
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use dark lenses if possible.
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drive slowly enough to see obstacles with your headlights.
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put your own high beams on if other drivers don't put their low beams on.
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