Answer :
Final answer:
Pressure gauges are typically protected by relief valves when connected to compressor suction and discharge lines. A option is correct.
Explanation:
Pressure gauges are typically protected by relief valves when connected to compressor suction and discharge lines. Relief valves are designed to automatically open and relieve pressure when it exceeds a predetermined level, ensuring the gauge and connected system are not damaged. These valves help maintain the safety and accuracy of pressure measurements.
