According to Coast Guard Regulations (46...

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Question 1 of 205eccefa0bacbc34ba4d46d06

According to Coast Guard Regulations (46 CFR), feed water nozzles shall be fitted with sleeves, or have other suitable means employed to reduce the effects of temperature differentials on all boilers designed for operating pressures of __________.

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🔍 Key Concepts

• 46 CFR requirements for boiler construction and safety devices • Relationship between boiler design pressure and additional protective features (like feed water nozzle sleeves) • Where in 46 CFR Subchapter F – Marine Engineering boiler rules are typically found

💭 Think About

• Think about why temperature differentials at the feed water nozzle become a serious design concern only above certain pressures. How does higher pressure relate to higher saturation temperature? • Consider which of the listed pressures is commonly used as a threshold in regulations for adding extra safety or construction requirements to boilers. • Ask yourself: at what pressure range do regulations typically start requiring more sophisticated protection against thermal stress, cracking, and erosion at the feed water entry point?

✅ Before You Answer

• Verify which exact pressure value is cited in 46 CFR for the requirement that feed water nozzles be fitted with sleeves or equivalent means. • Confirm the unit pairing (psig and kPa) for that pressure level to avoid being misled by the metric conversion. • Double‑check you’re looking at the section dealing specifically with boiler feed water nozzles and not general boiler pressure limits.

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