In accordance with 46 CFR Subchapter F...

Question 1 of 270705eccefa0bacbc34ba4d46d05

In accordance with 46 CFR Subchapter F (Marine Engineering), main propulsion water-tube boilers are not required to be fitted with a surface blow-off valve if the design pressure is which of the following?

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Question 1 of 27070

🔍 Key Concepts

• 46 CFR Subchapter F requirements for boiler fittings and appurtenances • Specific provision in 46 CFR dealing with surface blow-off valves on water-tube boilers • How design pressure thresholds change what safety/operational fittings are required

💭 Think About

• Look up the exact CFR section that covers surface blow-off arrangements for main propulsion water-tube boilers. What design pressure language is used there? • Compare the pressure value mentioned in the regulation to each of the choices. Which option matches the "or over" wording in the rule? • Think about why higher-pressure boilers might have different design/operational considerations that could allow or require a change to surface blow-off fittings.

✅ Before You Answer

• Verify you are in 46 CFR Subchapter F – Marine Engineering, in the part that covers boilers and pressure vessels (not general machinery). • Confirm the section that specifically mentions "surface blow-off" for water-tube boilers (not fire-tube or auxiliary boilers). • Check the exact pressure number and units (psig/kPa) in the regulation and match it carefully to the closest choice given.