Answer: Explanation: Application of the bernoulli's equation comes in from conservation of mass flow. The cross sectional area of the two pipes are calculated. from A = πD²/4
The velocity of water from conservation of mass flow is also calculated ; V2 = Ac1V1/Ac2
The Loss coefficient is then calculated from KL = (1 - Ac1²/Ac2²)²
Then the head Loss (hL) is calculated The detailed calculated and appropriate steps is as shown in the attached files.