Mechanical Operations For efficient grinding, ball mills must be operated At a speed less than the critical speed At a speed more than the critical speed With minimum possible small balls At a speed equal to the critical speed At a speed less than the critical speed At a speed more than the critical speed With minimum possible small balls At a speed equal to the critical speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following comes in the category of primary crusher for hard and tough stone? Cone crusher None of these Jaw crusher Gyratory crusher Cone crusher None of these Jaw crusher Gyratory crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In classification, particles are said to be equal settling, if they have the same terminal velocities in the Both B and C Different fluids Same fluid Same field of force Both B and C Different fluids Same fluid Same field of force ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a roll crusher, the specific power consumption and the production rate is affected by the Neither A nor B Differential roll speed Both A & B Reduction ratio Neither A nor B Differential roll speed Both A & B Reduction ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in the pressure drop across the cake, the specific cake resistance for the compressible sludge Remains constant Increases Increases linearly Decreases Remains constant Increases Increases linearly Decreases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Equivalent diameter of a particle is the diameter of the sphere having the same Ratio of surface to volume as the actual volume Volume as the particle Ratio of volume to surface as the particle None of these Ratio of surface to volume as the actual volume Volume as the particle Ratio of volume to surface as the particle None of these ANSWER DOWNLOAD EXAMIANS APP
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