Task 18 Determine the absolute pressure

Task 18 Determine the absolute air pressure on the surface of the liquid P0 and the position of the piezometric plane hp, if the readings of the pressure gauge Pman = 30 kPa liquid pressure H = 3.05 m, the distance from the connection point to the center of the pressure gauge z, atmospheric pressure Rat = 100 kPa, liquid density rj = 880 kg / m3.