According to Coast Guard Regulations (46...

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Question 1 of 205eccefa0bacbc34ba4d46d27

According to Coast Guard Regulations (46 CFR), a 1200 psig maximum allowable working pressure boiler, with external blow off piping is required to have the blow off piping withstand a minimum of __________.

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🔍 Key Concepts

• 46 CFR requirements for boilers and external blowoff piping working under high pressure • Relationship between maximum allowable working pressure (MAWP) and required test or design pressure for associated piping • Typical percentage or safety factor that regulations apply above MAWP for fittings and external piping

💭 Think About

• How does 46 CFR usually relate test/design pressure to the maximum allowable working pressure—is it the same, higher by a fixed psi, or higher by a percentage? • For external blowoff piping, would the Coast Guard likely require a margin of safety above MAWP, and if so, is that margin more likely to be a fixed percentage or a small fixed increase? • Compare each choice to 1200 psig: which ones represent common regulatory safety factors (for example, 25% over MAWP, 10% over MAWP, etc.)?

✅ Before You Answer

• Identify in 46 CFR the specific section on boiler blowoff piping and note the exact wording about required pressure rating or test pressure. • Calculate percentage above 1200 psig for each option (A–D) and see which one matches the regulation’s required safety factor. • Confirm whether the requirement is for withstand/test pressure (not just working pressure) for the blowoff piping.

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