According to 46 CFR Part 61, which of the following statements is true concerning the inspection of water-tube boilers?

Correct Answer: Option C — Boiler mountings attached directly to the boiler plating by screwed studs and nuts shall be removed and examined every 10 years.

Under USCG National Maritime Center examination standards, the accepted correct answer is: Boiler mountings attached directly to the boiler plating by screwed studs and nuts shall be removed and examined every 10 years..