Massachusetts 2nd Class Fireman's Practice Exam

When checking the water level of a boiler, what is the appropriate action?

1. Ask the boiler operator

2. Test the safety valve

3. Use the bottom blowdown valve

4. Blow down the gauge glass and water column

The correct answer is: Blow down the gauge glass and water column

The appropriate action for checking the water level of a boiler is to blow down the gauge glass and water column. This process is essential because it ensures that the gauge glass is clear and provides an accurate reading of the water level inside the boiler. Over time, deposits and contaminants can accumulate in the gauge glass and water column, which may lead to incorrect readings. By performing a blowdown, the operator can remove any obstructions, allowing for a true indication of the water level. Conducting this action helps maintain the safety and efficiency of the boiler system. It's vital for preventing issues such as low water levels, which could lead to overheating or damage to the boiler. Regularly checking and cleaning the gauge glass is a fundamental practice to ensure accurate monitoring and safe operation of the boiler.