ASTM Grain size measurement method counts the __________________ – McqOptions

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1.	ASTM Grain size measurement method counts the __________________
A.	number of grain in 1 mm<sup>2</sup> at magnification of 1X
B.	number of grain in 1 mm<sup>2</sup> at magnification of 100X
C.	number of grain in 100 mm<sup>2</sup> at magnification of 1X
D.	number of grain in 100 mm<sup>2</sup> at a magnification of 100X
Answer» B. number of grain in 1 mm<sup>2</sup> at magnification of 100X

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