Mechanical Operations The value of 'angle of nip' is generally about 64° 52° 16° 32° 64° 52° 16° 32° ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The operating speed of a ball mill should be __________ the critical speed. Less than Slightly more than Much more than At least equal to Less than Slightly more than Much more than At least equal to ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's crushing law states that Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores. Jigging Tabling Froth floatation Classification Jigging Tabling Froth floatation Classification ANSWER DOWNLOAD EXAMIANS APP
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 1.34 Wi 3.34 Wi 0.5 Wi Wi 1.34 Wi 3.34 Wi 0.5 Wi Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Driving force in case of filtration by a centrifuge is the 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 Centrifugal pressure exerted by the liquid Formation of highly porous cake ANSWER DOWNLOAD EXAMIANS APP
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