Question 185Steam Plants - Assistant Engineer

70% to pass

Coast Guard regulations require that the relieving capacity of boiler safety valves must be checked _______________.

Awhen repairs have been made to the safety valves

Bwhen the generating capacity of the boiler is increased

Cat least once every 4 years

Dat least once a year

AI Explanation

The correct answer is B) when the generating capacity of the boiler is increased. The reasoning behind this is that the relieving capacity of boiler safety valves must be checked whenever the generating capacity of the boiler is increased, to ensure the safety valves are adequately sized to handle the increased steam production. This is a requirement specified in the Coast Guard regulations. The other options are incorrect - option A refers to repairs, option C specifies a fixed 4-year interval, and option D specifies an annual check, which are not the correct regulatory requirements for checking the relieving capacity of boiler safety valves.