Mechanical Operations During size reduction by a jaw crusher, the energy consumed decreases with the None of these Decreasing machine capacity Increasing size of feed at constant reduction ratio Decreasing size of product at constant size of feed None of these Decreasing machine capacity Increasing size of feed at constant reduction ratio Decreasing size of product at constant size of feed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mill is normally used for grinding of talc. Pebble Ring-roll Tube Compartment Pebble Ring-roll Tube Compartment ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as N ∝ 1/√D N ∝ √D N ∝ D N ∝ 1/D N ∝ 1/√D N ∝ √D N ∝ D N ∝ 1/D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( > 50000 centipoise)? Flat blade turbine Helical screw Curved blade turbine Propeller Flat blade turbine Helical screw Curved blade turbine Propeller ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A pebble mill Employs flints or ceramic pebbles as the grinding medium Is a ball mill Both B and C Is a tube mill lined with ceramic or other non-metallic liner Employs flints or ceramic pebbles as the grinding medium Is a ball mill Both B and C Is a tube mill lined with ceramic or other non-metallic liner ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During agitation of liquids, the Power number becomes independent of impellers Reynolds number at high Reynolds number, but is dependent on the geometry of the impeller Froude number is used to account for the effect of surface (e.g., the centre vortex) on the power number Froude number is independent for the curves between power number and Reynolds number in baffled system 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 used to account for the effect of surface (e.g., the centre vortex) on the power number Froude number is independent for the curves between power number and Reynolds number in baffled system All of these ANSWER DOWNLOAD EXAMIANS APP
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