Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.5 2.76 1 0.66 0.5 2.76 1 0.66 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gummy & sticky materials like molasses, sugar etc. are best transported/handled by using a __________ conveyor. Screw Drag Ribbon Slat Screw Drag Ribbon Slat ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grinding efficiency of a ball mill is of the order of __________ percent. 40-50 90-95 43835 75-80 40-50 90-95 43835 75-80 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Temperature of the product during ultrafine grinding Decreases Increases May increase or decrease ; depends on the material being ground Remains constant Decreases Increases May increase or decrease ; depends on the material being ground Remains constant ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Specific surface area is the surface area of a unit __________ of materials. Weight Either A or B Volume Neither A nor B Weight Either A or B Volume Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Angle of nip of the crushing rolls does not depend upon the Speed of the rolls Diameter of the rolls Feed size Product size Speed of the rolls Diameter of the rolls Feed size Product size ANSWER DOWNLOAD EXAMIANS APP
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