3.9 Boiler procedures

In order to avoid scale formation and corrosion in the _____, the make up water for the feedwater supply must be properly treated

When examining the waterside surfaces, the inspector looks for signs of corrosion, pitting and ________ of the metal.

During the high-pressure flush, the blowdown valves should be disconnected, if possible, to prevent them from getting plugged with _________

Moisture absorbing material should be placed on trays inside the drums to absorb moisture from the ________

Inert gas, such as nitrogen, is connected to the drum vent to maintain approximately ______ kpa, positive pressure.

When the pressure in the boiler steam drum drops to ______kPa, the drum vents are to be opened to avoid the formation of a vacuum within the boiler.

Which of the following is not a common cause of furnace explosions

The operator must be familiar with manual operation of the ______system, in case of a system failure

___________ storage is preferable for boilers that are out of service for an extended period of time or in locations where freezing temperatures.

In order for the gauge glass to show the correct level, all connections to the gauge glass and the water column, must be ______ to ensure they are clear and free from obstructions.