Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Toothed roll crusher Tube mill Gyratory crusher Ball mill Toothed roll crusher Tube mill Gyratory crusher Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable equipment for the transportation of 200 mesh size particles is a Screw conveyor Pneumatic conveyor Belt conveyor Bucket elevator Screw conveyor Pneumatic conveyor Belt conveyor Bucket elevator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cyclones are used primarily for separating Solids Solids from solids Solids from fluids Liquids Solids Solids from solids Solids from fluids Liquids ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Optimum ratio of operating speed to critical speed of a trommel is 1.5-2.5 0.33-0.45 0.5-2 1.33-1.45 1.5-2.5 0.33-0.45 0.5-2 1.33-1.45 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Fluid medium used in the classification technique of mineral beneficiation is Both A & B Water Air Neither A nor B Both A & B Water Air Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is ½w² . δ² . ρL ½w² . R² . ρL ½w² . R . ρL(R + 2δ) ½w² . δρL (2R + δ) ½w² . δ² . ρL ½w² . R² . ρL ½w² . R . ρL(R + 2δ) ½w² . δρL (2R + δ) ANSWER DOWNLOAD EXAMIANS APP
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