The low pressure warning light is:

Red.. Section 5.1: The low air pressure warning signal is usually a red light.

The low pressure warning light is:

ANSWER BREAKDOWN
  • A. Correct. The low air pressure warning signal is usually a red light.
  • B. Incorrect. "Green." is not correct. The low air pressure warning signal is usually a red light.
  • C. Incorrect. "Yellow." is not correct. The low air pressure warning signal is usually a red light.
  • D. Incorrect. "Blue." is not correct. The low air pressure warning signal is usually a red light.