Q
58. After you lock the kingpin into the fifth wheel, you should check the connection by pulling:
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Aa. Forward 50 feet, turning right, and left.
Bb. The tractor ahead gently with the trailer brakes locked.
Cc. The tractor ahead sharply to release the trailer brakes.
Detailed Explanation
The correct answer is "b. The tractor ahead gently with the trailer brakes locked.". This is based on federal CDL regulations and safety standards.
Correct Answer: b. The tractor ahead gently with the trailer brakes locked.
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