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Which component is added to ensure safety in high-pressure boiler systems?

  1. Pressure gauge

  2. Flow meter

  3. Safety relief valve

  4. Temperature sensor

The correct answer is: Safety relief valve

In high-pressure boiler systems, a safety relief valve is a crucial component because it is specifically designed to maintain safe operating pressure. This valve automatically opens to release steam and reduce pressure if it exceeds a predetermined limit. This action is essential to prevent overpressure situations that could lead to catastrophic failures, such as explosions or structural damage to the boiler. While pressure gauges, flow meters, and temperature sensors contribute to the overall monitoring and control of the system, they do not actively manage pressure. The pressure gauge allows operators to monitor the system's pressure, the flow meter tracks the rate of fluid flow, and the temperature sensor measures heat levels, but none have the capability to alleviate pressure directly. The safety relief valve, on the other hand, is a proactive safety measure that is essential for preventing potential hazards in high-pressure boiler operations.