If the trailer is too high when you try to couple:

It may not couple correctly.. Section 6.4: If too high, the kingpin may not engage the jaws correctly (High Pin).

If the trailer is too high when you try to couple:

ANSWER BREAKDOWN
  • A. Correct. If too high, the kingpin may not engage the jaws correctly (High Pin).
  • B. Incorrect. "It will damage the landing gear." is not correct. If too high, the kingpin may not engage the jaws correctly (High Pin).
  • C. Incorrect. "The tractor may hit the nose of the trailer." is not correct. If too high, the kingpin may not engage the jaws correctly (High Pin).
  • D. Incorrect. "The kingpin will break." is not correct. If too high, the kingpin may not engage the jaws correctly (High Pin).