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10 Cards in this Set
- Front
- Back
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True or False:A fully loaded is rig is more likely to roll over in a crash than empty rigs.
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True
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What will help to prevent roll-over?
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keep the cargo as close to the ground and as centered as possible and drive slowly around turns.
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True or False: Combination vehicles take longer to stop when they are fully loaded than when they are empty.
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False
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If a trailer starts to jackknife what should you do?
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release the brakes so the wheels can get traction again.
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What is off-tracking or cheating?
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when the rear wheels follow a different path than the front wheels when going around a corner.
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If you have to back up on a curve, which side should you back towards?
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The driver's side.
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What are the steps in backing up with a trailer?
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Look at your path. Use mirrors on both sides. Back slowly. Correct Drift Immediately. Pull forwards.
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What does the trailer hand (also called the trolley valve or johnson bar) valve do?
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It works the trailer brakes. It should only be used to test the trailer brakes.
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What does the Tractor Protection Valve do?
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It keeps air int he tractor brake system should the trailer break away or develop a bad lead.
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What is the tractor protection valve controlled by?
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the "tractor air supply" control valve in the cab which allows you to open and shut the tractor protection valve.
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