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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