Question 288Steam Plants - Assistant Engineer

70% to pass

Which 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.

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Official Resources
46 CFR Machinery & Electrical 46 CFR Engineering USCG National Maritime Center
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