Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 0.5 Wi 3.34 Wi Wi 1.34 Wi 0.5 Wi 3.34 Wi Wi 1.34 Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grindability of a material does not depend upon its Hardness Size Elasticity Toughness Hardness Size Elasticity Toughness ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their Terminal velocities None of these Particle sizes Densities Terminal velocities None of these Particle sizes Densities ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Xanthates are used in the froth floatation process as a/an Conditioner Frother Activator Collector Conditioner Frother Activator Collector ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tube mill compared to ball mill Produces finer products Is long in comparison with its diameter All of these Uses smaller balls Produces finer products Is long in comparison with its diameter All of these Uses smaller balls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill as compared to a ball mill All of these Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Gives finer size reduction but consumes more power Employs smaller balls All of these Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Gives finer size reduction but consumes more power Employs smaller balls ANSWER DOWNLOAD EXAMIANS APP
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