Mechanical Operations According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively). (S/V)f (S/V)²p √(S/V)p (S/V)p (S/V)f (S/V)²p √(S/V)p (S/V)p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A fluid energy mill is used for Ultra grinding Grinding Crushing Cutting Ultra grinding Grinding Crushing Cutting ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The study on washability of coal is done by using the __________ technique. Heavy media separation Tabling None of these Elutriation Heavy media separation Tabling None of these Elutriation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The mechanism of size reduction by a hammer mill is by impact and attrition between the Feed particles Both A & B Neither A nor B Grinding element & the housing Feed particles Both A & B Neither A nor B Grinding element & the housing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Froth floatation is the most suitable for treating Iron ores None of these Sulphide ores Quartzite Iron ores None of these Sulphide ores Quartzite ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Temperature of the product during ultrafine grinding Remains constant May increase or decrease ; depends on the material being ground Decreases Increases Remains constant May increase or decrease ; depends on the material being ground Decreases Increases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS