Mechanical Operations In closed circuit grinding as compared to open circuit grinding, the Product has lesser size uniformity Production rate at a given limiting size is lower Specific surface of product is more Operation is economical Product has lesser size uniformity Production rate at a given limiting size is lower Specific surface of product is more Operation is economical 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 460 2250 230 1125 460 2250 230 1125 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. Wettability Shape None of these Specific gravities Wettability Shape None of these Specific gravities ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is a cohesive solid. None of these Sand Wet clay Wheat None of these Sand Wet clay Wheat ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration rate does not depend upon the Pressure drop & area of filtering surface None of these Properties of the cake & the filtrate Resistance of the cake & the septum Pressure drop & area of filtering surface None of these Properties of the cake & the filtrate Resistance of the cake & the septum 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 . R . ρL(R + 2δ) ½w² . δ² . ρL ½w² . R² . ρL ½w² . δρL (2R + δ) ½w² . R . ρL(R + 2δ) ½w² . δ² . ρL ½w² . R² . ρL ½w² . δρL (2R + δ) ANSWER DOWNLOAD EXAMIANS APP
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