Mechanical Operations Shell and leaf filter as compared to plate and frame filter Provides more effective washing All of these Facilitates filtration under higher pressure Entails less labor cost Provides more effective washing All of these Facilitates filtration under higher pressure Entails less labor cost ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Solid particles separation based on the difference in their flow velocities through fluids is termed as the Clarification Sedimentation Elutriation Classification Clarification Sedimentation Elutriation Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During agitation of liquids, the Froude number is independent for the curves between power number and Reynolds number in baffled system All of these Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number Froude number is independent for the curves between power number and Reynolds number in baffled system All of these Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ are mixed using ribbon blenders. High viscosity liquids Dry powders Lumpy solids and low viscosity liquids Thick pastes High viscosity liquids Dry powders Lumpy solids and low viscosity liquids Thick pastes ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed? Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in high viscous suspension Wet grinding in low viscous suspension Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in high viscous suspension Wet grinding in low viscous suspension ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration rate does not depend upon the Pressure drop & area of filtering surface Properties of the cake & the filtrate Resistance of the cake & the septum None of these Pressure drop & area of filtering surface Properties of the cake & the filtrate Resistance of the cake & the septum None of these ANSWER DOWNLOAD EXAMIANS APP
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