You should not use the parking brake if:

The brakes are very hot.. Section 2.16: Do not use the parking brake if the brakes are very hot (they can warp) or wet in freezing temps.

You should not use the parking brake if:

ANSWER BREAKDOWN
  • A. Correct. Do not use the parking brake if the brakes are very hot (they can warp) or wet in freezing temps.
  • B. Incorrect. "You are on a hill." is not correct. Do not use the parking brake if the brakes are very hot (they can warp) or wet in freezing temps.
  • C. Incorrect. "You are loading cargo." is not correct. Do not use the parking brake if the brakes are very hot (they can warp) or wet in freezing temps.
  • D. Incorrect. "You are sleeping." is not correct. Do not use the parking brake if the brakes are very hot (they can warp) or wet in freezing temps.