Water at 15◦C is pumped at a rate of 20 L/s using a 5 kW pump. If the efficiency of the pump is 80%, what is the head added to the water as it passes through the pump? The pipeline described in...

Water at 15◦C is pumped at a rate of 20 L/s using a 5 kW pump. If the efficiency of the pump is 80%, what is the head added to the water as it passes through the pump?

The pipeline described in Problem 7.84 is replaced by 50-mm-diameter PVC pipe with a wall thickness of 2 mm and a modulus of elasticity of 1.7×104 MN/m2 . How will this affect the maximum water hammer pressure?