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- Assistant Engineer (Motor Plants (MODU)) »
- Q716 - Engineering Safety & Environmental Protection
1. A three inch overboard discharge line, located six feet below the waterline, has ruptured and separated from the hull. What would be the minimum number of strokes per minute required from a 8″ x 12″ x 12″ duplex double acting reciprocating bilge pump, operating at 82% efficiency, to keep the bilge level from continuing to rise
The pump must deliver approximately 45 strokes per minute to match the flooding rate and prevent the bilge from rising, based on a calculated inflow of 192 gallons per minute through a likely 2-inch rupture at a 6-foot head.
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