[Solved] 67 N/mm².; Spigot dia=65mm; thickness 0f collar=15mm

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Q.	67 N/mm².; Spigot dia=65mm; thickness 0f collar=15mm
A.	131mm
B.	139mm
C.	141mm
D.	149mm
Answer» A. 131mm
Explanation: compressive stress= p/ [(socket dia-spigot dia)*thickness].

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