If water flows through a pipe of 50 mm diameter under a pressure of 290 kPa (gauge) with mean velocity of 2 m/s, then determine the total head at 3 m above the datum line. The difference of mercury...

If water flows through a pipe of 50 mm diameter under a pressure of 290 kPa (gauge) with mean velocity of 2 m/s, then determine the total head at 3 m above the datum line.

The difference of mercury level in a differential U-tube manometer connected to the pitot tube is 10 cm. If the coefficient of tube is 0.975 and the specific gravity of oil is 0.82, then find the velocity of flow.