1943
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1998
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2009
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2015
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Number of questions: | 20 |
Passing score: | 16 |
1943
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|
1998
|
|
2009
|
|
2015
|
All shut-off valves should be open.
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The rear shut-off valves should be open.
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All shut-off valves should be in the open position, except the rear shut-off valves.
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No shut-off valves should be open.
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Is controlled by the foot brake.
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Is connected to the relay valves.
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Supplies air to the trailer air tanks.
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Prevents skids.
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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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Detach the jaws from around the kingpin.
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Make sure the locking lever is in the "emergency" position.
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Remove the safety latch.
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Look into the back of the fifth wheel.
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Green.
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Orange.
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Red.
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Blue.
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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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