Mechanical Operations For benefication of iron ore, the most commonly used method is None of these Jigging & tabling Flocculation Froth floatation None of these Jigging & tabling Flocculation Froth floatation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations As particle size is reduced None of these Screening becomes progressively more difficult Screening becomes progressively easier Capacity and effectiveness of the screen is increased None of these Screening becomes progressively more difficult Screening becomes progressively easier Capacity and effectiveness of the screen is increased ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Power consumption during turbulent flow in agitation tank is proportional to the __________ of the liquid. Density Surface tension Thermal conductivity Viscosity Density Surface tension Thermal conductivity Viscosity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity of a cubical particle, when its equivalent diameter is taken as the height of the cube, is 1 √3 0.5 √2 1 √3 0.5 √2 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 grinding of large particles (upto 1.25 cms) Dry grindng of large particles in un-baffed mills Wet grinding in high viscous suspension Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) Dry grindng of large particles in un-baffed mills Wet grinding in high viscous suspension Wet grinding in low viscous suspension ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of baffles in agitators help in minimising the __________ tendency. Neither A nor B Both A & B Vortexing Swirling Neither A nor B Both A & B Vortexing Swirling ANSWER DOWNLOAD EXAMIANS APP
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