If d is the diameter of the pipe, p is the total internal pressure, f – McqOptions

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1.	If d is the diameter of the pipe, p is the total internal pressure, f is the permissible tensile stress and n is the effective of the joint, the thickness t of metal pipe, is
A.	[A].
B.	[B].
C.	[C].
D.	[D].
E.	none of these.
Answer» C. [C].

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