The proof stress of a material of 3 inches gage length is the highest – McqOptions

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1.	The proof stress of a material of 3 inches gage length is the highest stress it can withstand without a permanent set of above ___________ inch.
A.	0.0003
B.	0.21
C.	0.05
D.	0.004
Answer» B. 0.21

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