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 2250 1125 230 460 2250 1125 230 460 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Operate at higher speed Employ bowl of larger diameter Can not be operated under pressure/vacuum Can't be used for separation of fine suspended solids from a liquid Operate at higher speed Employ bowl of larger diameter Can not be operated under pressure/vacuum Can't be used for separation of fine suspended solids from a liquid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( > 50000 centipoise)? Propeller Flat blade turbine Helical screw Curved blade turbine Propeller Flat blade turbine Helical screw Curved blade turbine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sauter mean diameter is the same as the __________ mean diameter. Volume-surface Arithmetic Mass Geometric Volume-surface Arithmetic Mass Geometric ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is 9.0 kWh/ton 18 kWh/ton 6.35 kWh/ton 25.4 kWh/ton 9.0 kWh/ton 18 kWh/ton 6.35 kWh/ton 25.4 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a roll crusher, both the rolls Have the same diameter All of these Run either at the same or different speeds Are rotated towards each other Have the same diameter All of these Run either at the same or different speeds Are rotated towards each other ANSWER DOWNLOAD EXAMIANS APP
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