Find the discharge of a water flowing through a pipe 20 cm diameter placed in an inclined position, where a venturimeter is inserted, having a throat diameter of 10 cm. the difference of pressure between the main and throe is measured by a liquid of specific gravity 0.4 in an inverted u-tube which gives a reading of 30cm. the loss of head between the main and throat is 0.2 times the kinetic head of pipe.