Make sure to couple matching glad hands.
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Any glad hand can be connected to any other glad hand.
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It is best to leave one glad hand unattached.
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Only one set of glad hands should be connected.
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Number of questions: | 20 |
Passing score: | 16 |
Make sure to couple matching glad hands.
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Any glad hand can be connected to any other glad hand.
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It is best to leave one glad hand unattached.
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Only one set of glad hands should be connected.
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Release the brakes.
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Apply the trailer hand brake.
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Allow the wheels to grip the road.
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Allow the trailer to straighten out.
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The suspension springs to extend.
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The tractor protection valve to open.
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The rear trailer to detach from the combination.
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The emergency brakes to activate.
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Are usually shorter than single commercial vehicles.
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Usually require less skill to drive than single commercial vehicles.
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Usually require more skill to drive than single commercial vehicles.
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Opening the rear shut-off valves and listening for escaping air.
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Closing the rear shut-off valves and listening for escaping air.
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Disconnecting air supply lines and listening for escaping air.
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Rolling each trailer down a hill and testing the brakes.
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Accelerate quickly after stopping.
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Drive slowly around turns.
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Keep the load near the back of the trailer.
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Keep the load on one side of the trailer.
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In the direction you want the trailer to go.
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In the direction opposite of where you want the trailer to go.
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To the left.
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