If you are driving a vehicle with air brakes, the air compressor governor controls:

When air is pumped into the air storage tanks.. Section 5.1: The governor controls when the air compressor will pump air into the air

If you are driving a vehicle with air brakes, the air compressor governor controls:

ANSWER BREAKDOWN
  • A. Incorrect. "The speed of the engine." is not correct. The governor controls when the air compressor will pump air into the air storage tanks (Cut-in/Cut-out).
  • B. Correct. The governor controls when the air compressor will pump air into the air storage tanks (Cut-in/Cut-out).
  • C. Incorrect. "The air pressure in the tires." is not correct. The governor controls when the air compressor will pump air into the air storage tanks (Cut-in/Cut-out).
  • D. Incorrect. "The brake pedal." is not correct. The governor controls when the air compressor will pump air into the air storage tanks (Cut-in/Cut-out).