NV CDL DOUBLES TRIPLES PRACTICE TEST
11.
After the pre-trip inspection, drivers should inspect their cargo and its securing devices again within ________ after beginning the trip.
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50 miles
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20 miles
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two hours
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25 miles
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12.
You are more at risk of being fatigued:
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when driving alone.
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when driving during the day.
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when stopping periodically during long trips.
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after getting more than 8 hours of sleep.
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13.
Doubles and triples:
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can be turned suddently due to the low center of gravity.
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can be stopped suddenly due to their weight.
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can't be turned suddenly.
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have a lower chance of skidding.
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14.
Foundation brakes are used:
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only with the front wheels.
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at each wheel.
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only with the rear wheels.
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only with the right wheels.
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15.
When parking a trailer without spring brakes, it is very important for safety that you use wheel chocks. Why?
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if you don't use wheel chocks, supply air will be sent to the service line instead of going to charge the trailer air tanks.
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The air could leak out of the trailer air tank, releasing its emergency brakes.
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You may not notice a major leak in the service line until you try to put the brakes on.
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None of the above.
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16.
If you have to drive off the road, you should:
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leave the road completely.
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keep one set of wheels on the pavement, if possible.
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brake as hard as you can to maintain control.
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fully apply the brakes until your speed has dropped to about 20 mph.
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17.
You should be especially alert for drunk drivers:
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in the early evening.
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in the morning.
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late at night.
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around shopping areas.
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18.
Which of the the following statements about fatigue is true?
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Fatigue impairs your vision and judgment.
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Fatigued driving is one of the leading causes of accidents.
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Fatigue may cause you to not see and react to hazards.
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All of the above.
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19.
If your vehicle has air brakes, to check that air flows to all trailers:
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pull gently on the trailer with the tractor.
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watch each trailer’s air gauge for a drop of 25 psi.
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go to the rear of the second trailer and open the emergency line shut-off.
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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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20.
If an item placed on a flatbed trailer is 7 feet long, it should have __ tie-downs.
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3
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7
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2
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1
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