Question 658Steam Plants - Assistant Engineer

A) After the main unit is secured, lubricating oil should be circulated until the temperature of the oil and reduction gear casing approximates the engine room temperature. This is the correct answer. Circulating the lubricating oil after the main unit is secured helps to avoid the accumulation of condensate in the main reduction gear casing. This is because it maintains the temperature of the oil and gear casing close to the surrounding engine room temperature, preventing the formation of condensation. The other options are incorrect because: B) Ensuring a specific lubricating oil pressure is not directly related to avoiding condensate accumulation. C) Applying gland sealing steam to the low-pressure turbine is not a practice that affects the reduction gear casing. D) The temperature of the lubricating oil should be maintained within the manufacturer's recommendations, but this does not specifically address the issue of condensate accumulation.