Question 288Steam Plants - Assistant Engineer
70% to passWhich of the following statements represents the Coast Guard Regulation regarding a boiler installation in which the superheater outlet temperature exceeds 850°F?
AVisible and audible alarms indicating excessive superheat shall be provided.
BA device, actuated by inlet static pressure and designed to function by the bursting of a pressure retaining disk, must be fitted at the outlet of the superheater.
CAll mountings, fittings, valves, or other superheater attachments must be of malleable cast iron.
DSafety valves are to be set at 110% of the highest setting of the safety valves on the drum.
AI Explanation
The correct answer is A) Visible and audible alarms indicating excessive superheat shall be provided. This is the correct answer because the Coast Guard regulations require that for boiler installations where the superheater outlet temperature exceeds 850°F, visible and audible alarms must be provided to indicate excessive superheat. This is a safety measure to alert the operator of potentially dangerous conditions in the superheater. The other answer choices are incorrect because they do not accurately represent the Coast Guard regulations for this specific type of boiler installation. Answers B, C, and D describe different requirements that are not applicable in this case.
Related Questions
Q392:A boiler with a water capacity of 10 tons generates steam at the rate of 30 tons... Q209:Bi-color water level indicators, connected directly to the boiler drum, operate ... Q2:A combustion control system diaphragm type air flow transmitter receives its hig... Q598:Which of the parts listed for a reaction turbine serve the same function as the ... Q428:A higher than normal stack gas temperature could indicate _______________.
Ready to test your knowledge?
Take a Steam Plants - Assistant Engineer Practice ExamOfficial Resources