Oil (SG=0.8) discharges from a 250mm diameter pipe through a sharp-crested orifice whose diameter is 65mm. The coefficient of contraction and velocity are 0.62 and 0.98, respectively. The manometer pressure reading at the pipe is 16.7kPa. Calculate the discharge through the orifice.

A cylindrical tank of water is 20 m in diameter and 3.5 m tall. There is a 1.0 cm diameter hole at the bottom from which water is leaking. A feeder pipe at the top of the tank, 4.0 m above the ground delivers water at a rate of 0.02 m/min. Ir the tank is initially half full, tal what is the water flow rate in m^3/sec from the top feeder pipe? (bi what is the pressure at the bottom of the tank? (Hint: Bernoul's principle) () what is the water speed at the bottom? (d) what is the leaking flow rate at the bottom? fe) at what rate is the volume of water changing? (Assume the tank is open to air at the top)

a=4 b=0 C=1

Q-4 Define coeffecient of velocity, coefficient of discharge, coefficient of contraction. An oil of sp. gr. 0.8 is flowing through a venturimeter having inlet diameter 30 cm and throat diameter 15 cm and the oil- mercury differential manometer shown a reading of 25 cm. Calculate the discharge of oil through the horizontal venturimeter. Take C₁ = 0.98.

A 25-mm-diameter pipe 35m long is used to convey oil. The oil has a density of 880kg/m³ and a kinematic viscosity of 0.25×10*m³/s. The discharge in the pipe is Q=24x10*m³/min. Given that the pipe is placed horizontally and there are no any minor losses. Determine the pressure drop between the entrance and exit of pipe.