Mechanical Operations During agitation of liquids, the Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number 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 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 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 independent for the curves between power number and Reynolds number in baffled system ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? None of these Spiralling Tabling Panning None of these Spiralling Tabling Panning ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to None of these The change in volume due to crushing The new surface created The size reduction ratio None of these The change in volume due to crushing The new surface created The size reduction ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mill is not a revolving mill. Cage Tube Compartment Pebble Cage Tube Compartment Pebble ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. Middling Tailing Concentrate None of these Middling Tailing Concentrate None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screw conveyors are All of these Run at very high rpm Suitable for highly abrasive materials Suitable for sticky materials All of these Run at very high rpm Suitable for highly abrasive materials Suitable for sticky materials ANSWER DOWNLOAD EXAMIANS APP
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