A spherical metal vessel 120 cm diameter is subjected to an internal p – McqOptions

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1.	A spherical metal vessel 120 cm diameter is subjected to an internal pressure of 15 kg/sq cm. If the permissible stress is 625 kg/sq cm and the efficiency of the riveted joints is 75%, the required thickness of the plate would be
A.	10 mm
B.	2 mm
C.	5 mm
D.	1 mm
E.	8 mm
Answer» B.

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