Question: A closed tank contains oil with a specific gravity 0.85. If the gauge pressure at a point 10 feet below the oil surface is 23.

A closed tank contains oil with a specific gravity 0.85. If the gauge pressure at a point 10 feet below the oil surface is 23. 7 psi (lb/in.2), determine the absolute pressure and gauge pressure (in psi) in the air space at the top of the oil surface.

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