Engine : Steam Plants - 328/811
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| Fine metallic particles, which may originate from wear or failure of the lube oil service pump internal parts, are prevented from contaminating the bearings served by the lube oil system by __________. |
| A) the change of direction and settling action within the lube oil coolers |
| B) batch centrifuging the lube oil at least once a week |
| C) the settling action of solid matter in the gravity tank |
| D) use of the magnetic strainers in the lube oil service pump discharge piping |
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