You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks, you should:

Hook up the emergency line, charge the trailer air tank, and disconnect the emergency line to set the trailer emergency brakes.. Section

You want to hook your combination to a second trailer that has no spring brakes. To do this without wheel chocks, you should:

ANSWER BREAKDOWN
  • A. Incorrect. "Make sure the trailer doesn't roll away." is not correct. Section 6.4 / 7.2: If a trailer has no spring brakes, you can charge the air tank and then disconnect the emergency line to force the emergency brakes on.
  • B. Incorrect. "Supply air to the trailer air system and lock the trailer brakes (if equipped) or chock the wheels." is not correct. Section 6.4 / 7.2: If a trailer has no spring brakes, you can charge the air tank and then disconnect the emergency line to force the emergency brakes on.
  • C. Correct. Section 6.4 / 7.2: If a trailer has no spring brakes, you can charge the air tank and then disconnect the emergency line to force the emergency brakes on.
  • D. Incorrect. "Hope for the best." is not correct. Section 6.4 / 7.2: If a trailer has no spring brakes, you can charge the air tank and then disconnect the emergency line to force the emergency brakes on.