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UPGRADE TO CDL PREMIUM
1.
If your ABS is not working:
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you still have normal brake functions, and should drive and brake as you always have.
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it will slow your truck to a halt and force you to pull over.
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the drive wheels will begin to spin, and you should take your foot off the accelerator.
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you should immediately bring your vehicle to a complete stop.
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2.
If you will be transporting hazardous materials that require placards, you must:
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transport the materials at night only.
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ask permission of the local transportation agency.
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obtain a special transit permit.
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obtain a hazardous materials endorsement.
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3.
If a drawbridge does not have a signal light or traffic control attendant, you should:
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get through the drawbridge as quickly as possible.
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drive through the drawbridge with caution.
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stop and look to make sure the draw is completely closed before crossing.
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stop at least 5 feet before the draw of the bridge.
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4.
If an item placed on a flatbed trailer is 7 feet long, it should have __ tie-downs.
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7
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2
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3
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1
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5.
Emergency brakes must be must be held on by:
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the locking mechanism.
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mechanical force.
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water.
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air pressure.
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6.
When the trailer breaks away or develops a bad leak, the tractor protection valve will close automatically and:
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the trailer emergency brakes will come on.
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the trailer supply valve will stay open.
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the tractor will lose all air pressure.
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the engine will shut down.
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7.
When a vehicle goes around a corner, the rear wheels:
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follow a different path than the front wheels.
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will lock up.
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will turn freely.
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follow the same path as the front wheels.
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8.
The first thing to do when coupling a tractor-semitrailer is to:
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check the trailer height.
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lock the trailer brakes.
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inspect the fifth wheel.
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position the tractor.
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9.
You must have at least 4/32 inch tread depth in every major groove on front tires and at least ___ inch on other tires.
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4/32
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1/32
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2/32
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3/32
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10.
To prevent a rollover, you should keep the cargo as close to the ground as possible and:
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keep the vents clear so they work correctly.
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keep an eye on your tires.
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go slowly around turns.
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make sure that the release arm is in the engaged position.
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