Question 62Steam Plants - 1st Asst/Chief70% to pass
Bottom blow valves are installed on auxiliary water-tube boilers to _______________.
AI Explanation
The correct answer is D) remove settled solids from the water drum.
Bottom blow valves are installed on auxiliary water-tube boilers to remove any settled solids that accumulate in the bottom of the water drum. This helps maintain the proper water level and composition within the boiler, preventing sludge and scale buildup that could impair boiler efficiency and potentially lead to damage.
The other answer choices are incorrect because: A) is too broad, as bottom blow valves are not intended to completely drain the boiler; B) refers to preventing sludge in the steam drum, not the water drum; and C) is focused on removing floating impurities, while bottom blow valves target settled solids.
Related Questions
#60 Auxiliary boilers are divided into several classifications, one of which is _______________.#61 In a coil-type forced circulation auxiliary water-tube boiler, _______________.#63 The purpose of the separating nozzle in the accumulator of a water-tube, coil-type, steam generator is to separate _______________.#64 Which of the following statements concerning fire-tube boilers is correct? #65 Downcomers installed on auxiliary package boilers are protected from direct contact with hot gases by _______________.