Mechanical Operations During agitation of liquids, the Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller All of these 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 Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller All of these 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 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cake resistance is Independent of pressure drop Important in the beginning of filtration None of these Decreased with the time of filtration Independent of pressure drop Important in the beginning of filtration None of these Decreased with the time of filtration ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gold ore concentration is mostly done using Elutriation Tabling Froth floatation Jigging Elutriation Tabling Froth floatation Jigging ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Shape factor for a cylinder whose length equals its diameter is 2.0 0.5 1.0 1.5 2.0 0.5 1.0 1.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill as compared to a ball mill Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Gives finer size reduction but consumes more power All of these Employs smaller balls Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Gives finer size reduction but consumes more power All of these Employs smaller balls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the Centrifugation Flocculation Sedimentation Dispersion Centrifugation Flocculation Sedimentation Dispersion ANSWER DOWNLOAD EXAMIANS APP