The velocity of flow of water at the centre of tube is _______ when t – McqOptions

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1.	The velocity of flow of water at the centre of tube is _______ when the head is 0.1m, η=8.9*10-3 dynes-s/cm2, γw=1 g/cm3, the length is 10m and the diameter is 20cm.
A.	20 cm/s
B.	22 cm/s
C.	28 cm/s
D.	30 cm/s
Answer» D. 30 cm/s

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