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UPGRADE TO CDL PREMIUM
1.
For safe handling, the heaviest trailer should be:
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the last trailer.
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the second trailer in a triple.
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behind the tractor.
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None of the above.
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2.
Headache racks:
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help you keep weights within legal limits.
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protect you from being hit by your cargo.
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can blind other drivers.
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None of the above.
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3.
On any upgrade, gravity:
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speed you up.
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slows you down.
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doubles your speed.
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doesn't affect your speed.
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4.
To start moving without rolling back, you should:
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partly engage the clutch before you take your right foot off the brake.
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apply the trailer brake hand valve.
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put on the parking brake whenever necessary.
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All of the above.
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5.
If your brakes fail on a steep mountain downgrade, you should:
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stay on the road and keep looking for the next available escape ramp.
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slow down until your vehicle comes to a complete stop.
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set the parking brake and park in an open area.
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decide what to do as soon as you know your brakes do not work.
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6.
Which of the following statements is true?
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There is no way that short circuits due to damaged insulation can cause a vehicle fire.
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Carrying a properly charged and rated fire extinguisher will help prevent fires.
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Poor cargo ventilation is a common cause of fire.
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Under-inflated tires will NOT cause a vehicle fire.
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7.
Driving in very hot weather:
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can make it difficult to stay in your lane.
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should never be done.
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can increase tire pressure.
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can decrease oil pressure.
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8.
You must have at least _____ inch tread depth in every major groove on front tires.
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3/32
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6/32
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4/32
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2/32
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9.
You should do an after-trip inspection:
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once a month.
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after each trip.
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at least once a week.
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after each stop.
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10.
Engine oil pressure should come up to normal within _________ after the engine is started.
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two minutes
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seconds
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five minutes
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ten minutes
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