Mechanical Operations Close circuit grinding by a ball mill with air sweeping employs a Classifier Both A & B Cyclone separator between mill & classifier Neither A nor B Classifier Both A & B Cyclone separator between mill & classifier Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 0.90 μm/s 1 μm/s 22.1 μm/s 0.02 μm/s 0.90 μm/s 1 μm/s 22.1 μm/s 0.02 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The reduction ratio for grinders is defined as(where, Df and Dp are average diameters of feed and product respectively). Df - Dp Dp/Df Df/Dp None of these Df - Dp Dp/Df Df/Dp None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Shell and leaf filter as compared to plate and frame filter All of these Provides more effective washing Facilitates filtration under higher pressure Entails less labor cost All of these Provides more effective washing Facilitates filtration under higher pressure Entails less labor cost ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid Can not be operated under pressure/vacuum Operate at higher speed Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid Can not be operated under pressure/vacuum Operate at higher speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Specific surface ratio Shape factor Surface area per unit mass Sauter diameter Specific surface ratio Shape factor Surface area per unit mass Sauter diameter ANSWER DOWNLOAD EXAMIANS APP
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