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What happens when the safety relief valve is activated?

  1. Steam pressure is increased

  2. Water is drained from the boiler

  3. Excess pressure is released

  4. The boiler is shut down

The correct answer is: Excess pressure is released

When the safety relief valve is activated, excess pressure is released. This component is a crucial safety feature in boiler systems that prevents potential hazards caused by over-pressurization. When the pressure within the boiler exceeds the set limit, the safety relief valve opens automatically to allow steam or gas to escape. This process helps to bring the pressure back down to a safe level, thereby protecting the boiler and its components from damage and reducing the risk of catastrophic failures or explosions. Ensuring the proper functioning of the safety relief valve is essential for safe boiler operation, as it acts as a safeguard against unsafe pressure levels.