Hamad Mechanical Operations 30/12/2021 A. π = (A/D2) B. 2π = (2A/D2) C. π/6 = (V/D3) D. AD/V Related Mcqs: Grinding efficiency of a ball mill is of the order of _______________ percent?A. 1-5 B. 40-50 C. 75-80 D. 90-95... ______________ are used for the separation of coarse particles from a slurry of fine particles?A. Thickeners B. Classifiers C. Hydrocyclones D. Decanters... Rittinger number which designates the new surface produced per unit of mechanical energy absorbed by the material being crushed, depends on the ______________________?A. State or manner of application of the crushing force B. Ultimate strength of the material C. Elastic constant of the material D. All A., B. and C.... Fluid energy mill comes in the category of________________?A. Grinder B. Crusher C. Cutter D. Ultrafine grinder... increasing the capacity of a screen _______________ the screen effectiveness?A. Decreases B. Increases C. Does not effect D. None of these...
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