If the air pressure warning signal does not work:

You could lose all air pressure and have no brakes without warning.. Section 5.3: A working warning signal is critical for safety.

If the air pressure warning signal does not work:

ANSWER BREAKDOWN
  • A. Correct. A working warning signal is critical for safety.
  • B. Incorrect. "It is okay to drive." is not correct. A working warning signal is critical for safety.
  • C. Incorrect. "The brakes will lock automatically." is not correct. A working warning signal is critical for safety.
  • D. Incorrect. "Use a flashlight." is not correct. A working warning signal is critical for safety.