A compressed air cylinder carries approximately 70 kg/cm2 pressure at – McqOptions

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1.	A compressed air cylinder carries approximately 70 kg/cm2 pressure at the time of delivery. The inside diameter is 25 cm. If the steel has a yield point of 2300 kg/sq cm and a safety factor of 2.5 the wall thickness should be
A.	10 mm
B.	15 mm
C.	8 mm
D.	12 mm
E.	5 mm
Answer» B.

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