Question 382Steam Plants - 1st Asst/Chief

The correct answer is C) Steps should be taken to immediately stop the shaft. When the engineer reports a loss of oil flow in the oil head tank bull's eye, it indicates a serious issue with the lubrication system, which could lead to damage or seizure of the main engine shaft. The appropriate action is to take steps to stop the shaft immediately to prevent further damage. Stopping the shaft would involve securing the engine and engaging the emergency stop procedures. The other answer choices are incorrect because: A) Opening the boiler auxiliary feed valve would not address the issue with the lubrication system; B) Checking the lube oil head tank vent would not resolve the immediate problem of losing oil flow; and D) Allowing the oil to continue overflowing in the glass could result in further damage to the machinery.