1972
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1987
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1998
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|
2004
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Number of questions: | 20 |
Passing score: | 16 |
1972
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1987
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|
1998
|
|
2004
|
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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May not work correctly.
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May feel squishy.
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Will squeal loudly when used.
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Will be extremely sensitive.
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Drivers turn too fast.
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Driver turn too slowly.
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It is windy.
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It is raining.
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The parking brake.
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The trailer emergency brakes.
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The trailer service brakes.
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The landing gear.
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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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Cause the trailer to disconnect.
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Cause steering problems.
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Cause braking problems.
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Affect the lights.
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