Mechanical Operations Which of the following mechanical conveyors does not come under the division 'carriers'? Screw conveyor Belt conveyor Apron conveyor Bucket elevator Screw conveyor Belt conveyor Apron conveyor Bucket elevator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same? 1 ∞ 0.5 1 ∞ 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³) 3.6 AVS/ρ 3.6 A.V.ρ 3.6 AVS.ρ 3.6 A.S. ρ 3.6 AVS/ρ 3.6 A.V.ρ 3.6 AVS.ρ 3.6 A.S. ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A pebble mill Employs flints or ceramic pebbles as the grinding medium Both B and C Is a ball mill Is a tube mill lined with ceramic or other non-metallic liner Employs flints or ceramic pebbles as the grinding medium Both B and C Is a ball mill Is a tube mill lined with ceramic or other non-metallic liner ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a vacuum filter? Filter press Tank filter (Nutsch filter) Batch basket centrifuge Rotary disc filter Filter press Tank filter (Nutsch filter) Batch basket centrifuge Rotary disc filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as Np ∝ NRe Np ∝ √NRe Np ∝ 1/NRe Np → constant Np ∝ NRe Np ∝ √NRe Np ∝ 1/NRe Np → constant ANSWER DOWNLOAD EXAMIANS APP
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