Answer:
We will take the point 1 at the free surface of the tank and point 2 at the exit of the pipe. after this centerline is taken at the centerline of the orific where Z2=0. Positive direction of z is taken upwards
Fluid velocity at free surface is very low and almost
Also the fluid at both the points is open to atmosphere so in that case
After putting the above mentioned conditions
where Given
So from here the total head can be defined as
Since the dia of the piping system is constant and the initial velocity is given as 4 m/s so from here required mass flow rate and head can be calculated as
Answer
Now from equation 1 and 2
Answer
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