Mechanical Operations Size reduction of moulding powders, waxes, resins & gums are done in a __________ mill. Hammer Both A & B Cage Neither A nor B Hammer Both A & B Cage Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mills are termed as impactors. Cage Rolling-compression Hammer None of these Cage Rolling-compression Hammer None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is proportional to (where, S = screen aperture) 1/S S S² √S 1/S S S² √S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screw conveyors are Suitable for highly abrasive materials Run at very high rpm Suitable for sticky materials All of these Suitable for highly abrasive materials Run at very high rpm Suitable for sticky materials All of these ANSWER DOWNLOAD EXAMIANS APP
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 Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m³) 3.6 W.D.V.ρ 3.6 D.V.ρ 3.6 W.V.ρ 3.6 W.D.V. 3.6 W.D.V.ρ 3.6 D.V.ρ 3.6 W.V.ρ 3.6 W.D.V. ANSWER DOWNLOAD EXAMIANS APP
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