Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to The size reduction ratio None of these The change in volume due to crushing The new surface created The size reduction ratio None of these The change in volume due to crushing The new surface created ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Toothed roll crushers achieve size reduction by Impact and attrition Neither A nor B Tearing (shear) and compression Both A & B Impact and attrition Neither A nor B Tearing (shear) and compression Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, the Maximum feed size may be 50 mm Feed may be highly abrasive (Moh's scale >5) Minimum product size is 3 mm Rotor shaft carrying hammers can be vertical or horizontal Maximum feed size may be 50 mm Feed may be highly abrasive (Moh's scale >5) Minimum product size is 3 mm Rotor shaft carrying hammers can be vertical or horizontal ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is 1125 2250 230 460 1125 2250 230 460 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of materials into products based on the difference of their sizes is called Flocculation Sorting Classification Sizing Flocculation Sorting Classification Sizing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grinding efficiency of a ball mill is of the order of __________ percent. 40-50 43835 90-95 75-80 40-50 43835 90-95 75-80 ANSWER DOWNLOAD EXAMIANS APP
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