Question 406General Subjects - Assistant Engineer

The correct answer is A) cycled at least once a day. When the danger of freezing exists, all steam-driven reciprocating pumps and deck equipment should be cycled at least once a day. This is to prevent the equipment from freezing, which could cause damage or prevent it from operating properly. Cycling the equipment helps circulate the fluid and prevents it from stagnating and freezing. The other options are incorrect because they do not provide the necessary frequency of cycling the equipment to prevent freezing. Cycling the equipment once every 4 days or once a week would not be sufficient to prevent freezing in cold conditions, and simply watching the equipment while idled would not actively prevent freezing.