Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same? 1 ∞ 0.5 1 ∞ 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mass flow of granular solid (M) through a circular opening of dia, D follows M ∝ D³ M ∝ D M ∝ D² M ∝ √D M ∝ D³ M ∝ D M ∝ D² M ∝ √D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores. Froth floatation Jigging Tabling Classification Froth floatation Jigging Tabling Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Separation efficiency Selectivity index Concentration ratio None of these Separation efficiency Selectivity index Concentration ratio None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A. __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end. Compartment Rod Pebble Tube Compartment Rod Pebble Tube ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Width and speed of a conveyor belt depends upon the __________ of the material. Bulk density Both A & B Lump size Neither A nor B Bulk density Both A & B Lump size Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
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