A penstock pipe of 10 m diameter carries water under a pressure head o – McqOptions

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1.	A penstock pipe of 10 m diameter carries water under a pressure head of 100 m. If the wall thickness is 9 mm, what is the tensile stress, in Mpa, in the pipe wall?
A.	1090
B.	272.5
C.	2725
D.	545
Answer» E.

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