Higher is the mesh number, smaller will be the aperture size of the sc – McqOptions

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1.	Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?
A.	British standard screens
B.	German standard screens (DIN 1171) etc
C.	American standard screens (ASTM and Tyler standard screens)
D.	All A., B. and C.
Answer» E.

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