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 The sphericity of a solid particle of cubical shape is π π/3 (π/6)1/2 (π/6)1/3 π π/3 (π/6)1/2 (π/6)1/3 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The capacity of a gyratory crusher is __________ that of a jaw crusher with the same gape, handling the same feed & for the same product size range. 2.5 times 10 times 5 times Same as 2.5 times 10 times 5 times Same as ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a ball mill, the volume occupied by the balls (when the mill is stopped) is about __________ percent of the volume of the mill. 35 50 70 85 35 50 70 85 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Dust laden air can be purified using a Tubular centrifuge Bag filter Cyclone separator Gravity settler Tubular centrifuge Bag filter Cyclone separator Gravity settler ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following must be stored in silos and not in open yard? High V.M. bituminous coal None of these Sand Coke breeze High V.M. bituminous coal None of these Sand Coke breeze ANSWER DOWNLOAD EXAMIANS APP
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