When coupling, the fifth wheel should be positioned so that:

The trailer apron touches the fifth wheel plate just before the pin engages.. Section 6.4: The trailer apron should rest flat on the fifth

When coupling, the fifth wheel should be positioned so that:

ANSWER BREAKDOWN
  • A. Incorrect. "The tractor frame hits the landing gear." is not correct. The trailer apron should rest flat on the fifth wheel plate. If there is a gap, it is coupled incorrectly.
  • B. Correct. The trailer apron should rest flat on the fifth wheel plate. If there is a gap, it is coupled incorrectly.
  • C. Incorrect. "It is tilted down." is not correct. The trailer apron should rest flat on the fifth wheel plate. If there is a gap, it is coupled incorrectly.
  • D. Incorrect. "It is sideways." is not correct. The trailer apron should rest flat on the fifth wheel plate. If there is a gap, it is coupled incorrectly.