A closed tank 3m high and 1.8m in diameter is filled with 2.4m of oil (S.G.=0.8) and 0.6m of water. A 0.60m air space is above the oil surface. What is the vapor pressure (in kPa) if a gage at the bottom of the tank reads 110kPa absolute?

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Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?