Water flows between two points 1, 2. The volumetric flow rate is 20 l – McqOptions

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1.	Water flows between two points 1, 2. The volumetric flow rate is 20 litres/min. Point 2 is 50 m higher than point 1. The pipe internal diameters are 0.5 cm at point 1 and 1 cm at point 2. The pressure at point 2 is 1 atm. Calculate the pressure at point 1.
A.	4.6 bar
B.	5.6 bar
C.	4.1 bar
D.	5.1 bar
Answer» B. 5.6 bar

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