The pressure corresponding to a vertical water column of three feet is approximately how many psig?

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Multiple Choice

The pressure corresponding to a vertical water column of three feet is approximately how many psig?

Pressure from a liquid column increases with height, and for water the pressure added per vertical foot is about 0.433 psi. So a 3-foot column adds 3 × 0.433 ≈ 1.299 psi. With the top open to atmosphere, the bottom pressure is gauge pressure, about 1.30 psig.

Pressure from a liquid column increases with height, and for water the pressure added per vertical foot is about 0.433 psi. So a 3-foot column adds 3 × 0.433 ≈ 1.299 psi. With the top open to atmosphere, the bottom pressure is gauge pressure, about 1.30 psig.

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