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Engine : Steam Plants - 347/811
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Oil supply pressure to the main lube oil header of a gravity feed lube oil system is __________.
A) the sum of the lube oil static head pressure and service pump discharge pressure
B) the difference between the lube oil static head pressure and service pump discharge pressure
C) the result of the height of the gravity tank above the manifold
D) equal to the service pump discharge pressure, since the static heads of the lines to and from the gravity tank cancel out one another
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