Mechanical Operations Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately ? Rittinger's law None of these Bond's law Kick's law Rittinger's law None of these Bond's law Kick's law 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 Both A & B Feed material Type of crushing machine Neither A nor B Both A & B Feed material Type of crushing machine Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Secondary Ultrafine Fine Primary Secondary Ultrafine Fine Primary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively). √(S/V)p (S/V)f (S/V)²p (S/V)p √(S/V)p (S/V)f (S/V)²p (S/V)p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A straight line is obtained on plotting reciprocal of filtration rate vs. the volume of filtrate for __________ flow of filtrate. Compressible cakes and laminar Compressible cake and turbulent Incompressible cake and laminar Incompressible cake and turbulent Compressible cakes and laminar Compressible cake and turbulent Incompressible cake and laminar Incompressible cake and turbulent ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Close circuit grinding by a ball mill with air sweeping employs a Both A & B Neither A nor B Cyclone separator between mill & classifier Classifier Both A & B Neither A nor B Cyclone separator between mill & classifier Classifier ANSWER DOWNLOAD EXAMIANS APP
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