Question 38Steam Plants - 1st Asst/Chief

The correct answer is C) Boiler mountings attached directly to the boiler plating by screwed studs and nuts shall be removed and examined every 10 years. This statement is correct based on the regulation in 46 CFR 61.10-5(c), which states that "Boiler mountings attached directly to the boiler plating by screwed studs and nuts shall be removed and examined every 10 years." This regulation specifies the inspection interval for this type of boiler mounting. The other options are incorrect because they do not accurately reflect the requirements in the regulations. Option A is incorrect as it specifies a 4-year interval, which is not the requirement. Option B is incorrect as it specifies an 8-year interval, which is also not the requirement. Option D is incorrect as it specifies an 8-year interval for all mountings, which is not the case according to the regulations.