Massachusetts 2nd Class Fireman's Practice Exam 2025 – All-in-One Comprehensive Guide for Exam Success

Question: 1 / 400

The primary purpose of a superheater is to?

Heat steam above its saturation temperature

The primary purpose of a superheater is to heat steam above its saturation temperature. This process enhances the thermal efficiency of a steam system by increasing the steam's temperature while maintaining constant pressure. When steam is superheated, it becomes dry and increases in energy content, which is vital for improving the efficiency of turbines and other steam-driven machinery. Superheated steam can achieve higher temperatures than saturated steam, allowing for greater efficiency in power generation and improving overall plant performance.

Heating steam above saturation temperature also helps to prevent condensation in the turbines, which can lead to damage or reduced efficiency. By delivering dry, superheated steam, the system minimizes the risk of turbine blade erosion and corrosion, ensuring a longer lifespan for the equipment and reliable operation.

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Boost the steam pressure

Add heat to the combustion air

Add heat to the incoming feedwater

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