Which of the following statements correct? – McqOptions

MCQOPTIONS

1.	Which of the following statements correct?
A.	Rockwell scale B in used for hard metals
B.	Rockwell scale C is used for hard metals
C.	Rockwell scale C is used for soft metals
D.	Rockwell scale A is used for hard metals
E.	None of the above
Answer» C.

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