Question 40Steam Plants - 1st Asst/Chief

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?

AAll mountings, fittings, valves, or other superheater attachments must be of malleable cast iron.
BVisible and audible alarms indicating excessive superheat shall be provided.
CSafety valves are to be set at 110% of the highest setting of the safety valves on the drum.
DA 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.
AI Explanation

The correct answer is B) 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. The other answer choices are incorrect because they do not accurately represent the Coast Guard regulations for this specific boiler installation scenario. Options A, C, and D describe different requirements that do not apply to the given situation where the superheater outlet temperature exceeds 850°F.

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