Plant Operation Practice Test 2025 - Free Plant Operation Practice Questions and Study Guide

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What is typically monitored by the gauge glass on a boiler?

Pressure levels

Temperature

Water level

The gauge glass on a boiler is designed specifically to monitor the water level within the boiler. This glass tube, typically made of a material resistant to high temperatures and pressures, allows operators to visually assess the current water level in the boiler. Maintaining the appropriate water level is crucial for safe and efficient boiler operation; if the water level is too low, it can lead to overheating and potential damage to the boiler. Conversely, if the water level is too high, it can cause water to carry over into the steam lines, leading to water hammer or other operational issues. Thus, the gauge glass serves an essential role in ensuring the boiler operates within safe parameters by providing real-time visibility of the water level.

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Fuel levels

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