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UPGRADE TO CDL PREMIUM
1.
You are driving a heavy vehicle with a manual transmission, and you have to stop on the shoulder while driving on an uphill grade. When putting your vehicle back in motion up the grade, you should:
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shift down to a speed that you can control without using the brakes.
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use the parking brake to hold the vehicle until the clutch engages.
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keep the clutch slipping while slowly accelerating.
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partly engage the clutch before you take your right foot off the brake.
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2.
The application pressure gauge:
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shows how much air pressure is being applied to the brakes.
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stops the compressor from pumping air.
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protects the tank and the rest of the system from too much pressure.
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tells you how much pressure is in the air tanks.
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3.
When approaching a double railroad track, you should:
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remember that a train on one track may hide a train on the other track.
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expect to hear a train when it's approaching.
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remember that trains may be more frequent.
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rely upon the presence of warning signals.
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4.
If the low air pressure warning light comes on, you should:
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continue to drive normally.
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call for help.
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stop immediately.
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set the parking brake.
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5.
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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6.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Steering
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Speed control
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Braking
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Weight limits
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7.
During freezing weather, which area is most likely to be slippery after it rains?
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Roads that look wet.
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Bridges.
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Shaded areas.
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All of the above.
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8.
To prevent rollover, you should:
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drive in the left lane whenever possible.
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drive slower around corners.
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drive faster on ramps and off ramps.
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All of the above.
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9.
A bridge formula permits:
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less maximum axle weight for axles that are far apart.
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more maximum axle weight for axles that are far apart.
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more maximum axle weight for axles that are closer together.
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less maximum axle weight for axles that are close together.
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10.
If your ABS fails:
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the first step is to get the vehicle off the road and stop.
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you will have no brake function, and could lose control.
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your tires might grab unexpectedly and you could lose control.
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you will still have normal brake functions.
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