Permissible velocity of water flowing through concrete tunnel is usual – McqOptions

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1.	Permissible velocity of water flowing through concrete tunnel is usually
A.	4 - 5 m/s
B.	12 - 12 m/s
C.	25 m/s
D.	20 m/s
E.	10 - 12 m/s
Answer» B.

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