Mechanical Operations Close circuit grinding by a ball mill with air sweeping employs a Both A & B Classifier Cyclone separator between mill & classifier Neither A nor B Both A & B Classifier Cyclone separator between mill & classifier Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges 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 Employ bowl of larger diameter Can't be used for separation of fine suspended solids from a liquid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the Cyclone separator Venturi atomiser Gravity settling chamber Electro-static precipitator Cyclone separator Venturi atomiser Gravity settling chamber Electro-static precipitator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation. Flocculation Sedimentation Clarification Classification Flocculation Sedimentation Clarification Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not a revolving/tumbling mill used for size reduction? Pebble mill Rod mill Cage mill Compartment mill Pebble mill Rod mill Cage mill Compartment mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During agitation of liquids, the 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 independent for the curves between power number and Reynolds number in baffled system Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number 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 independent for the curves between power number and Reynolds number in baffled system Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number ANSWER DOWNLOAD EXAMIANS APP
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