Mechanical Operations Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle). 6.V/D.S V/6D.S V/D.S S/V 6.V/D.S V/6D.S V/D.S S/V ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In filtration, the use of 'filter aid' helps in Reducing the filtration pressure Accelerating the rate of filtration Deplugging the filter medium Enhancing the cake porosity in case of a dense impermeable cake Reducing the filtration pressure Accelerating the rate of filtration Deplugging the filter medium Enhancing the cake porosity in case of a dense impermeable cake ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration. Varying rate Varying pressure Constant rate Constant pressure Varying rate Varying pressure Constant rate Constant pressure ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is not a function of Screening mechanism Its openings size Atmospheric humidity Screening surface Screening mechanism Its openings size Atmospheric humidity Screening surface 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 Equivalent diameter of a particle is the diameter of the sphere having the same None of these Ratio of volume to surface as the particle Volume as the particle Ratio of surface to volume as the actual volume None of these Ratio of volume to surface as the particle Volume as the particle Ratio of surface to volume as the actual volume ANSWER DOWNLOAD EXAMIANS APP
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