When a sudden contraction is introduced in a horizontal pipeline from 500mm diameter to 250mm diameter, the pressure changed from 105Kpa to 69Kpa. If the coefficient of contraction is assumed to be 0.65, calculate the water flow rate. Following this, if there is a sudden enlargement from 250mm to 500mm and if the pressure at the 250mm section is 69Kpa, what is the pressure at the 500mm enlarged section? Naghet moger Loss in soth Case

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