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

The air compressor governor controls:

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