Question 522Steam Plants - Assistant Engineer70% to pass
Oil flowing through the sight glass in the line between the lube oil gravity tank and main sump indicates the _______________.
AI Explanation
The correct answer is B) the gravity tank is overflowing.
When oil is observed flowing through the sight glass in the line between the lube oil gravity tank and the main sump, it indicates that the gravity tank is overflowing. This is because the lube oil gravity tank is designed to provide a constant supply of oil to the main sump, and any excess oil will flow back to the sump through this line, which is what is observed in the sight glass.
The other options are incorrect because: A) a stopped lube oil pump would not cause oil to flow through the sight glass, C) a clogged suction strainer would restrict oil flow, not cause it to overflow, and D) a full lube oil sump would not cause the gravity tank to overflow.
Related Questions
#520 Oil supply pressure to the main lube oil header of a gravity feed lube oil system is _______________.#521 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? #523 Which of the following statements about gravity type lube oil systems is correct? #524 In steam turbine and reduction gear units, lube oil coolers installed in the lube oil system are located between the _______________.#525 In a gravity lube oil system, a sight glass is installed in a line near the operating platform. This line connects the _______________.