Mechanical Operations Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the Size Volatile matter content Differential wettability Density separation Size Volatile matter content Differential wettability Density separation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations To produce talcum powder, use Ball mill Pin mill Hammer mill Jet mill Ball mill Pin mill Hammer mill Jet mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.5 2.76 0.66 1 0.5 2.76 0.66 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Froth floatation is the most suitable for treating None of these Sulphide ores Iron ores Quartzite None of these Sulphide ores Iron ores Quartzite ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Driving force in case of filtration by a centrifuge is the Centrifugal pressure exerted by the liquid Formation of highly porous cake Narrow diameter of the vessel Speed of the centrifuge Centrifugal pressure exerted by the liquid Formation of highly porous cake Narrow diameter of the vessel Speed of the centrifuge ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Choke crushing (in case of a Jaw crusher) compared to free crushing Results in increased capacity Consumes more power Both A and C Consumes less power Results in increased capacity Consumes more power Both A and C Consumes less power ANSWER DOWNLOAD EXAMIANS APP
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