Mechanical Operations For sizing of fine materials, the most suitable equipment is a Vibrating screen Trommel Grizzly Shaking screen Vibrating screen Trommel Grizzly Shaking screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Close circuit grinding by a ball mill with air sweeping employs a Classifier Cyclone separator between mill & classifier Both A & B Neither A nor B Classifier Cyclone separator between mill & classifier Both A & B Neither A nor B 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 change in volume due to crushing The size reduction ratio None of these The new surface created The change in volume due to crushing The size reduction ratio None of these The new surface created ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The porosity of a compressible cake is Minimum at the upstream face Minimum at the filter medium Maximum at the filter medium Same throughout the thickness of cake Minimum at the upstream face Minimum at the filter medium Maximum at the filter medium Same throughout the thickness of cake ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls? 46° 32° 40° 16° 46° 32° 40° 16° 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 Type of crushing machine Neither A nor B Both A & B Feed material Type of crushing machine Neither A nor B Both A & B Feed material ANSWER DOWNLOAD EXAMIANS APP
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