Mechanical Operations Which of the following is not an ultrafine grinder (colloid mill)? Agitated mills and fluid energy mills Toothed roll crusher Micronizers Hammer mills with internal classification Agitated mills and fluid energy mills Toothed roll crusher Micronizers Hammer mills with internal classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The capacity of a classifier in 'tons of solid/hr' is given by (where, A = cross-sectional area, m² V = rising velocity of fluid, m/sec.S = percentage of solids in the suspension by volume.ρ = density of solids, kg/m³) 3.6 A.S. ρ 3.6 A.V.ρ 3.6 AVS.ρ 3.6 AVS/ρ 3.6 A.S. ρ 3.6 A.V.ρ 3.6 AVS.ρ 3.6 AVS/ρ 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 Pine oil and cresylic acid are used as __________ in the froth floatation process. Conditioner Collector Depressor Frother Conditioner Collector Depressor Frother ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Angle of nip of the crushing rolls does not depend upon the Speed of the rolls Diameter of the rolls Feed size Product size Speed of the rolls Diameter of the rolls Feed size Product size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Run of mine (ROM) coal is crushed by a __________ for use in domestic ovens. Tube mill Jaw crusher Ball mill Hammer crusher Tube mill Jaw crusher Ball mill Hammer crusher ANSWER DOWNLOAD EXAMIANS APP
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