When uncoupling, you should pull the tractor forward to clear the fifth wheel, but leave the frame under the trailer. Why?

To catch the trailer if the landing gear collapses.. Section 6.4: This is a safety measure. If the landing gear fails, the trailer will

When uncoupling, you should pull the tractor forward to clear the fifth wheel, but leave the frame under the trailer. Why?

ANSWER BREAKDOWN
  • A. Incorrect. "To inspect the tires." is not correct. This is a safety measure. If the landing gear fails, the trailer will fall onto the tractor frame instead of the ground.
  • B. Correct. This is a safety measure. If the landing gear fails, the trailer will fall onto the tractor frame instead of the ground.
  • C. Incorrect. "To check the lights." is not correct. This is a safety measure. If the landing gear fails, the trailer will fall onto the tractor frame instead of the ground.
  • D. Incorrect. "It is faster." is not correct. This is a safety measure. If the landing gear fails, the trailer will fall onto the tractor frame instead of the ground.