Question 143Steam Plants - QMED70% to pass
When a sudden increase in pressure occurs in a forced lubrication system, you should check for a _______________.
AI Explanation
The correct answer is C) loss of oil flow across one of the bearings.
When there is a sudden increase in pressure in a forced lubrication system, it typically indicates a restriction or blockage in the system, which can lead to a loss of oil flow across one of the bearings. This increased pressure is the system's way of compensating for the reduced flow, and checking for a loss of oil flow across the bearings is the appropriate course of action.
The other options are incorrect because: A) a clogged lube oil pump suction would not cause a sudden increase in pressure, B) a high lube oil sump level would not directly cause a pressure increase, and D) a ruptured tube in the lube oil cooler would more likely result in a decrease in pressure rather than an increase.
Related Questions
#141 Excessive water in an operating lube oil system can be detected by _______________.#142 The maximum temperature rise of oil passing through any reduction gear set, or bearing, should not exceed _______________.#144 On a ship equipped with a gravity type lube oil system, which of the conditions listed will occur FIRST if the main lube oil pump discharge pressure is lost? #145 While a vessel is underway, which of the conditions listed would indicate a leak in the lube oil cooler? #146 The source of metal particles adhering to the magnets in a lube oil strainer is probably from the _______________.