Question 423Steam Plants - Assistant Engineer70% to pass
Which of the listed methods can be used to blow down a boiler without securing the fires?
AI Explanation
The correct answer is B) Steam drum surface blow.
The steam drum surface blow is the correct method to blow down a boiler without securing the fires. This is because the steam drum surface blow allows the operator to release steam and water from the top of the steam drum, which helps remove accumulated solids and sludge without disrupting the combustion process in the furnace. In contrast, the other options (bottom blow, front water wall header blow, and rear water wall header blow) would disrupt the fire and water circulation within the boiler, which is not recommended when the boiler is still in operation.
Related Questions
#421 Before giving a boiler a bottom blow, it should be taken off the line and then the _______________.#422 Dissolved oxygen can be removed from the boiler water by _______________.#424 A unit of measure used to express the chloride content of boiler water is _______________.#425 Treatment of boiler feed water for the control of hardness is necessary to prevent _______________.#426 Chemicals are added to boiler water to _______________.