Question 210Steam Plants - Assistant Engineer70% to pass
Which of the listed problems will happen when the water level of a fire-tube type auxiliary boiler approaches the crown sheet?
AI Explanation
The correct answer is A) The fusible plugs will melt.
In a fire-tube type auxiliary boiler, the crown sheet is the top of the furnace. As the water level approaches the crown sheet, the fusible plugs installed on the crown sheet will melt, allowing the steam and water to escape and preventing the furnace from overheating and potentially exploding. This is a safety feature designed to protect the boiler and prevent catastrophic failure.
The other options are incorrect because: B) The furnace will not explode if the fusible plugs function as intended, C) Excess steam will not be generated, and D) The furnace will not overheat if the fusible plugs melt and release the steam and water.
Related Questions
#208 The items labeled "D" and "M" as indicated on the illustration are commonly called _______________. Illustration SG-0020 #209 Bi-color water level indicators, connected directly to the boiler drum, operate on the principle of _______________.#212 Which of the following statements concerning fire-tube boilers is correct? #213 The tube sheets installed in a fire-tube auxiliary boiler are normally connected by _______________.#214 Fusible plugs are installed in fire-tube boilers to _______________.