Mechanical Operations Grinding efficiency of a ball mill is of the order of __________ percent. 43835 75-80 40-50 90-95 43835 75-80 40-50 90-95 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Feed material Type of crushing machine Neither A nor B Both A & B Feed material Type of crushing machine Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) π/6(=V/D³) None of these AD/V π(=A/D²) π/6(=V/D³) None of these AD/V π(=A/D²) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The distribution given by microscopic analysis of powder is Length Volume Area Number Length Volume Area Number ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Balls for ball mills are never made of Alloy steel Lead Forged/cast steel Cast iron Alloy steel Lead Forged/cast steel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to The new surface created The size reduction ratio The change in volume due to crushing None of these The new surface created The size reduction ratio The change in volume due to crushing None of these ANSWER DOWNLOAD EXAMIANS APP
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