New York Low Pressure Boiler COF Practice

What is the purpose of the glass gauge in a low-pressure boiler?

1. To measure gas pressure

2. To ensure accurate reading of water level

3. To monitor steam temperature

4. To indicate fuel levels

The correct answer is: To ensure accurate reading of water level

The purpose of the glass gauge, also known as a sight glass, in a low-pressure boiler is to ensure an accurate reading of the water level within the boiler. This is crucial for safe and efficient operation. The sight glass provides a visual indication of the water level so that operators can quickly assess whether the boiler has sufficient water to function properly. Maintaining the correct water level is essential to prevent overheating, damage to the boiler, and potential safety hazards such as boiler explosions. In a low-pressure boiler, the glass gauge allows personnel to monitor the water level without the need for complex electronic sensors or gauges. This direct visualization helps ensure that the water does not fall below a certain threshold, which could expose the boiler components to excessive heat and lead to failure. By using the glass gauge, operators can make timely adjustments to the water supply as needed, thereby promoting safe operation and longevity of the equipment.