Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Electrolyte Neither A nor B Both A & B Surface active agent Electrolyte Neither A nor B Both A & B Surface active agent ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Capacity of flight conveyor in tons/hr is given by (where, W & D = width and depth of flight respectively in metre V = speed of the conveyor, metre/second ρ = bulk density of material, kg/m³) 3.6 W.D.V.ρ 3.6 W.D.V. 3.6 W.V.ρ 3.6 D.V.ρ 3.6 W.D.V.ρ 3.6 W.D.V. 3.6 W.V.ρ 3.6 D.V.ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vibrating screens are used for handling large tonnages of materials. The vibrating motion is imparted to the screening surface by means of Cams or eccentric shafts Electromagnets Either A, B or C Unblanced fly wheels Cams or eccentric shafts Electromagnets Either A, B or C Unblanced fly wheels ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Ball mill Toothed roll crusher Tube mill Gyratory crusher Ball mill Toothed roll crusher Tube mill Gyratory crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Requires more energy Gives less wear on chamber walls Increases capacity Complicates handling of the product Requires more energy Gives less wear on chamber walls Increases capacity Complicates handling of the product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocal of sphericity is termed as the Specific surface ratio Shape factor Sauter diameter Surface area per unit mass Specific surface ratio Shape factor Sauter diameter Surface area per unit mass ANSWER DOWNLOAD EXAMIANS APP
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