GEORGIA CDL DOUBLES TRIPLES PRACTICE TEST
11.
The best advice for driving in fog is:
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drive slowly in the left lane of traffic.
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don't drive.
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use high beams.
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use low beams.
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12.
Combination vehicles usually:
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are shorter than single than single CMVs.
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are easier to drive than single than single CMVs.
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require more driving skill than single CMVs.
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All of the above.
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13.
When should you be particularly careful about high winds?
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When emerging from a tunnel
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When driving in winter
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When driving at night
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When going downhill
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14.
If you must drive slowly, how should you alert following drivers?
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Help them out by signaling when it is safe to pass
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Use your emergency flashers if it is legal
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Turn on your taillights
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Flash your brake lights
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15.
An item that is 15 feet long placed on a flatbed trailer should have at least:
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3 tie-downs.
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2 tie-downs.
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15 tie-downs.
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1 tie-down.
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16.
The safety valve is usually set to open at:
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200 psi.
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100 psi.
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75 psi.
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150 psi.
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17.
If you are caught in strong winds, you should:
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immediately take your foot off the accelerator.
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speed up while keeping a strong grip on the steering wheel.
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keep a strong grip on the steering wheel and slow down or pull off the roadway.
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None of the above.
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18.
Before driving a vehicle with a dual brake brake system, the driver should:
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wait at least 5 minutes before driving.
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pump the brake pedal 10 times to build pressure.
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wait at least 10 minutes before driving.
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allow time for the air compressor to build up a minimum of 100 psi pressure in both the primary and secondary systems.
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19.
If your vehicle has air brakes, to check that air flows to all trailers:
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go to the rear of the second trailer and open the emergency line shut-off.
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pull gently on the trailer with the tractor.
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check that the fifth wheel is not so far forward that the tractor frame will hit the landing gear.
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watch each trailer’s air gauge for a drop of 25 psi.
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20.
Which of these statements about brakes is true?
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Brake fade does not result from excessive heat.
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The lighter the vehicle, the more heat the brakes absorb to stop it.
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To stop, the brake shoes and linings are pushed against the outside of the drum.
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None of the above.
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