Question 339Steam Plants - 1st Asst/Chief

The correct answer is B) water carryover from the boilers. The main propulsion turbine can be damaged by water carryover from the boilers. If water enters the turbine, it can cause severe damage to the blades and other internal components. Water carryover can occur if the boiler is not properly maintained or if there is a problem with the boiler water level control system. The other options are incorrect because: A) maintaining vacuum too high would not directly damage the turbine, C) operating at slow speeds is generally not an issue for turbines, and D) using the jacking gear with no vacuum would not cause turbine damage.