Mechanical Operations In froth floatation, chemical agent added to cause air adherence is called Modifier Frother Activator Collector Modifier Frother Activator Collector ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed? Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Wet grinding in high viscous suspension Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Wet grinding in high viscous suspension 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)? Propeller Curved blade turbine Flat blade turbine Helical screw Propeller Curved blade turbine Flat blade turbine Helical screw ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of solid particles based on their densities is called Clarification Sorting Sizing Dispersion Clarification Sorting Sizing Dispersion ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for cleaning of fine coal dust (<0.5 mm)? Trough washer Baum jig washer Froth floatation Spiral separator Trough washer Baum jig washer Froth floatation Spiral separator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Width and speed of a conveyor belt depends upon the __________ of the material. Both A & B Neither A nor B Bulk density Lump size Both A & B Neither A nor B Bulk density Lump size ANSWER DOWNLOAD EXAMIANS APP
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