A cylindrical shell made of mild steel plate of 100 cm diameter is to be subjected to an internal pressure of 10 kg/cm 2 . If the material yields at 2000 kg/cm 2 , assuming factor of safety as four and using maximum principal stress theory, thickness of the plate will be

A cylindrical shell made of mild steel plate of 100 cm diameter is to

1.	A cylindrical shell made of mild steel plate of 100 cm diameter is to be subjected to an internal pressure of 10 kg/cm 2 . If the material yields at 2000 kg/cm 2 , assuming factor of safety as four and using maximum principal stress theory, thickness of the plate will be
A.	5 mm
B.	10 mm
C.	15 mm
D.	20 mm
Answer» C. 15 mm

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A cylindrical shell made of mild steel plate of 100 cm diameter is to be subjected to an internal pressure of 10 kg/cm 2 . If the material yields at 2000 kg/cm 2 , assuming factor of safety as four and using maximum principal stress theory, thickness of the plate will be

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