DOUBLES TRIPLES TEST AK - CDL PRACTICE TEST
11.
If you are feeling sleepy, you should:
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pull off the road and rest or take a nap.
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increase your speed to get to the destination quicker.
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slow down and drive on the shoulder of the road.
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12.
The trailer hand valve should:
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never be used for parking.
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be used in driving.
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never be used to test the trailer brakes.
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13.
During a trip you need to inspect the cargo and its securing devices:
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after every break you take.
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every 3 hours or 150 miles.
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All of the above.
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14.
If there is a fire in your vehicle, do NOT:
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park in an open area.
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pull into a service station.
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notify emergency services.
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15.
When backing, you should:
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only use mirror on the driver's side.
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back quickly.
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use the mirrors on both sides.
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16.
Which of the following statements about drivers fixing an engine or changing a tire is true?
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They often do not pay attention to roadway traffic.
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They usually pay attention to the danger roadway traffic is to them.
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Roadway traffic is not a danger to them.
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17.
If your vehicle thumps or vibrates heavily, it may be a sign that:
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you need to shift up.
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one of the tires has gone flat.
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the brakes have failed.
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18.
The safety valve installed in the first tank the air compressor pumps air is set to open:
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if there is too little pressure.
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if there is too much pressure.
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at 30 psi.
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19.
While crossing railroad tracks, you should:
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shift up.
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not shift gears.
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shift down.
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20.
When coupling twin trailers, the more heavily loaded semitrailer should:
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have its brakes locked.
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be in the rear.
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be in first position behind the tractor.
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