Modern air brake systems combine three different systems. They are the service, parking, and ___ brakes.

Emergency. Section 5.1: The three systems are Service brakes, Parking brakes, and Emergency brakes.

Modern air brake systems combine three different systems. They are the service, parking, and ___ brakes.

ANSWER BREAKDOWN
  • A. Correct. The three systems are Service brakes, Parking brakes, and Emergency brakes.
  • B. Incorrect. "Foot" is not correct. The three systems are Service brakes, Parking brakes, and Emergency brakes.
  • C. Incorrect. "S-cam" is not correct. The three systems are Service brakes, Parking brakes, and Emergency brakes.
  • D. Incorrect. "Drum" is not correct. The three systems are Service brakes, Parking brakes, and Emergency brakes.