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UPGRADE TO CDL PREMIUM
1.
Front-end header boards:
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protect drivers from cargo in case of an accident or emergency stop.
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protect drivers from spilled cargo.
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reduce traction.
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should never be used.
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2.
When your vehicle starts to skid, you must take action to:
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accelerate and countersteer.
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use controlled braking.
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use stab braking.
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restore traction to the tires.
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3.
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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decide what to do as soon as you know your brakes do not work.
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set the parking brake and park in an open area.
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slow down until your vehicle comes to a complete stop.
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4.
When you turn suddenly while pulling doubles, which trailer is most likely to turn over?
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The front trailer is twice as likely to turn over as the tractor.
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All trailers are equally likely to turn over.
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The rear trailer is twice as likely to turn over as the tractor.
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None of the above.
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5.
The trailer hand valve should:
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never be used to test the trailer brakes.
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be used in driving.
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never be used for parking.
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All of the above.
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6.
To test your parking brake, do the following:
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Speed up to 15 mph, then set the parking brake.
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Speed up to 5 mph, then set the parking brake.
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Set the parking brake, and gently pull against it in a low gear.
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Set the parking brake while going downhill.
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7.
If the air compressor is belt-driven, you should check the air compressor drive belt before each trip. The belt should be:
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loose.
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tight.
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worn.
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cracked.
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8.
Strong winds can make it difficult to stay in your lane especially when driving:
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flatbed trailers.
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lighter vehicles.
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heavier vehicles.
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vehicles with ABS.
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9.
How can you tell if a converter dollie has ABS?
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There is an ABS plaque on the right side of the dolly.
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There is a red lamp on the left side of the dolly.
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There is an ABS system on the right side of the dolly.
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There is a yellow lamp on the left side of the dolly.
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10.
To reduce the chance of rollover, you should:
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put the lightest parts of the cargo under the heaviest parts.
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distributed the cargo as low as possible inside the trailer.
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place the cargo as high as possible inside the trailer.
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None of the above.
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