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Design the bolts for an inspection hole in the shell of a pressure vessel having a mild steel cover plate. The hole is 120mm in

Design the bolts for an inspection hole in the shell of a pressure vessel having a mild steel cover plate. The hole is 120mm in diameter and the pressure inside the vessel is 6N/mm^2. The nominal diameter of the bolt is 24mm and the thickness of the pressure vessel is 10mm. Assume allowable tensile stress for mild steel as 60MPa and for bolt material as 40MPa.

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