blowdowns

• Which of the following is the proper method for testing a low-water cut-off device on a steam heating boiler? lower the water level in the boiler until the burner shuts down
• Why should the gauge glass on a steam boiler be blown down regularly? to remove dirt and sediment from the glass
• What is the basic function of the low water cut-off device?to shut off the fuel supply to the burner
• The maximum size of the bottom blowdown line and the surface blowdown line is: 2.5"