Mechanical Operations In closed circuit grinding as compared to open circuit grinding, the Operation is economical Product has lesser size uniformity Specific surface of product is more Production rate at a given limiting size is lower Operation is economical Product has lesser size uniformity Specific surface of product is more Production rate at a given limiting size is lower ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ are mixed using ribbon blenders. Lumpy solids and low viscosity liquids High viscosity liquids Dry powders Thick pastes Lumpy solids and low viscosity liquids High viscosity liquids Dry powders Thick pastes ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re0.0 Po ∝ Re1.0 Po ∝ Re-1.0 Po ∝ Re0.5 Po ∝ Re0.0 Po ∝ Re1.0 Po ∝ Re-1.0 Po ∝ Re0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration rate does not depend upon the 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 Pressure drop & area of filtering surface ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of baffles in agitators help in minimising the __________ tendency. Neither A nor B Vortexing Swirling Both A & B Neither A nor B Vortexing Swirling Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Arrange the following size reduction equipment in the decreasing order of the average particle size produced by each of them. Ball mill, Jaw crusher, Fluid energy mill Fluid energy mill, Ball mill, Jaw crusher Jaw crusher, Ball mill, Fluid energy mill Fluid energy mill, Jaw crusher, Ball mill Ball mill, Jaw crusher, Fluid energy mill Fluid energy mill, Ball mill, Jaw crusher Jaw crusher, Ball mill, Fluid energy mill Fluid energy mill, Jaw crusher, Ball mill ANSWER DOWNLOAD EXAMIANS APP
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