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An inverted U-tube manometer is used to measure the pressure difference between two pipes A and B, as shown in the figure. Pipe A is carrying oil (specific gravity = 0.8) and pipe B is carrying water. The densities of air and water are 1.16 kg/ m3 and 1000 kg/m3, respectively. The pressure difference between pipes A and B is________kPa.
Acceleration due to gravity: g = 10 m/s2
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Correct Option: A
PA −(ρoil × g × 0.2) − (ρair × g × 0.08) + (ρw × g × 0.38) − PB = 0
