If a boiler is being prepared for a hydrostatic test as part of a periodic inspection, in accordance with 46 CFR 61, which statement is true? oo

Correct Answer: Option A — Water-tube boilers should be filled with water from 70F to 160F, and fire-tube boilers should oo be filled with water from 70F to 100F. oo

46 CFR 61.10-15 specifies temperature requirements for hydrostatic testing to prevent brittle fracture or thermal stress. Water-tube boilers must be filled with water between 70°F and 160°F, while fire-tube boilers require a narrower range of 70°F to 100°F to ensure safe, uniform expansion during the test procedure.