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UPGRADE TO CDL PREMIUM
1.
When should you downshift automatic transmissions?
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When you start to get drowsy.
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When going down steep grades.
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Watch your tachometer, and downshift when your engine reaches the top of the range.
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When you want to go faster.
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2.
After starting the engine, oil pressure should rise to a normal level:
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within 2 minutes.
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within 3 miles.
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within 6 minutes.
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within seconds.
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3.
If you get stuck on railroad tracks, you should:
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stay in the vehicle and call for help.
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get out of the vehicle and away from the tracks.
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have a helper push your vehicle.
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check the engine compartment quickly.
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4.
With the air pressure built up to governor cutoff, the maximum leakage rates per minute after the initial pressure drop are:
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5 psi for single vehicles and 6 psi for a combination of 2 vehicles.
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1 psi for single vehicles and 2 psi for a combination of 2 vehicles.
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3 psi for single vehicles and 4 psi for a combination of 2 vehicles.
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4 psi for single vehicles and 2 psi for a combination of 2 vehicles.
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5.
When you use your mirrors while driving on the road, you should:
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avoid checking them regularly.
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only use the driver's side mirror.
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check them quickly.
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stare for a long time at the mirror.
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6.
If the spring brakes do not release when you push the trailer air supply control, you should:
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pump the brakes.
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check the air line connections.
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rev or
lug the engine.
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check the electrical cables.
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7.
In vehicles with air brakes, water and compressor oil in the bottom of the air tank:
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should be drained completely.
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should not be removed.
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should be added regularly.
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None of the above.
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8.
Antilock brakes:
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let you drive faster.
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help you stop faster.
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decrease your stopping distance.
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None of the above.
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9.
How many reflective triangles/emergency reflectors should you carry?
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3
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2
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4
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1
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10.
When backing a trailer, turn the wheel right to make the cab go ________ and the trailer go ________.
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left; right
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left; left
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right; left
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right; right
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