What is a 'Safety Valve' in an air brake system?

It releases air if pressure gets too high (usually 150 psi).. Section 5.1: A safety relief valve protects the tank and the rest of the

What is a 'Safety Valve' in an air brake system?

ANSWER BREAKDOWN
  • A. Correct. A safety relief valve protects the tank and the rest of the system from too much pressure (usually opens at 150 psi).
  • B. Incorrect. "It prevents leaks." is not correct. A safety relief valve protects the tank and the rest of the system from too much pressure (usually opens at 150 psi).
  • C. Incorrect. "It acts as a parking brake." is not correct. A safety relief valve protects the tank and the rest of the system from too much pressure (usually opens at 150 psi).
  • D. Incorrect. "It cools the air." is not correct. A safety relief valve protects the tank and the rest of the system from too much pressure (usually opens at 150 psi).