If you cross the air lines when coupling (hooking Red to Blue):

You will not have trailer brakes or they won't release properly.. Section 6.2: If you cross the lines, air will not flow correctly. You

If you cross the air lines when coupling (hooking Red to Blue):

ANSWER BREAKDOWN
  • A. Incorrect. "It doesn't matter." is not correct. If you cross the lines, air will not flow correctly. You could have no trailer brakes, or they might lock up.
  • B. Incorrect. "The brakes will work fine." is not correct. If you cross the lines, air will not flow correctly. You could have no trailer brakes, or they might lock up.
  • C. Correct. If you cross the lines, air will not flow correctly. You could have no trailer brakes, or they might lock up.
  • D. Incorrect. "The truck will go faster." is not correct. If you cross the lines, air will not flow correctly. You could have no trailer brakes, or they might lock up.