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 A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is 0.6 0.4 0.1 None of these 0.6 0.4 0.1 None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In coal washeries, three products namely the valuable product (i.e. clean/washed coal), discarded product (i.e. mineral matter) and an additional concentrated product called __________ is produced. Tailing Middling None of these Concentrate Tailing Middling None of these Concentrate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grindability of a material does not depend upon its Size Elasticity Hardness Toughness Size Elasticity Hardness Toughness ANSWER DOWNLOAD EXAMIANS APP
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)p (S/V)²p √(S/V)p (S/V)f (S/V)p (S/V)²p √(S/V)p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mechanical conveyors does not come under the division 'carriers'? Apron conveyor Bucket elevator Belt conveyor Screw conveyor Apron conveyor Bucket elevator Belt conveyor Screw conveyor ANSWER DOWNLOAD EXAMIANS APP
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