🔍 Key Concepts

• 46 CFR requirements for superheater safety devices on steam plants • Why higher superheated steam temperatures create greater risk for overheating and material failure • The relationship between temperature limits and required alarms or automatic safeguards

💭 Think About

• Look up the specific 46 CFR section on steam propulsion plant superheaters and see at what outlet temperature alarms become mandatory. • Consider at what approximate temperature range steel and boiler components are more prone to rapid damage if cooling water or steam flow is lost. • Compare the answer choices to typical superheated steam operating temperatures on marine boilers and ask: at which level would regulations most likely require extra protection?

✅ Before You Answer

• Verify in 46 CFR, Subchapter F (Marine Engineering) the exact temperature value tied to the alarm requirement for superheaters. • Confirm that the requirement is for superheaters whose operating outlet temperature is capable of exceeding that value, not just normally operating at it. • Check that you are not confusing this requirement with limits for overpressure or other boiler protections; focus specifically on outlet temperature.