Mechanical Operations Coal is finally pulverised to 200 mesh size for burning in boilers by a Ball mill Roll crusher Gyratory crusher Hammer crusher Ball mill Roll crusher Gyratory crusher Hammer crusher 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 Neither A nor B Feed material Type of crushing machine Both A & B Neither A nor B Feed material Type of crushing machine Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen efficiency is Rejection Recovery Recovery/rejection None of these Rejection Recovery Recovery/rejection None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Consumes less power Consumes more power Both A and C Results in increased capacity Consumes less power Consumes more power Both A and C Results in increased capacity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The sphericity of a cylinder of 1 mm diameter and length 3 mm is 0.5 0.78 0.9 0.6 0.5 0.78 0.9 0.6 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grinding efficiency of a ball mill is of the order of __________ percent. 75-80 40-50 90-95 43835 75-80 40-50 90-95 43835 ANSWER DOWNLOAD EXAMIANS APP
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