1371Chemical EngineeringMedium
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________?
AAll A., B. and C.
BAmerican standard screens (ASTM and Tyler standard screens)
CGerman standard screens (DIN 1171) etc
DBritish standard screens
Correct answer
A. All A., B. and C.
Explanation
The correct answer is All A., B. and C..