Mechanical Operations Filtration of water in a paper mill is done by a/an __________ filter. Sparkler Open sand Vacuum leaf Plate and frame Sparkler Open sand Vacuum leaf Plate and frame ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable equipment for removing the fine dust particle (< 1 micron dia.) from air below its dew point will be a/an Cyclone separator Bag filter Wet scrubber Electrostatic precipitator Cyclone separator Bag filter Wet scrubber Electrostatic precipitator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed? Wet grinding in high viscous suspension Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) Dry grindng of large particles in un-baffed mills Wet grinding in high viscous suspension Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) Dry grindng of large particles in un-baffed mills ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following screens has the maximum capacity? Grizzlies Vibrating screen Trommels Shaking screen Grizzlies Vibrating screen Trommels Shaking screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Theoretical capacity of crushing rolls in tons/hr is given by (where, V = peripherial velocity, m/sec. W = width of rolls, m Dr = distance between rolls ρ = density of material to be crushed, kg/m³ here, V =πN.D where, N = speed of the rolls in rotation per second (rps) D = diameter of rolls, m) 3.6 V.W. ρ 3.6 V.W.Dr/ρ 3.6 V.W.Dr.ρ 3.6 W.Dr.ρ 3.6 V.W. ρ 3.6 V.W.Dr/ρ 3.6 V.W.Dr.ρ 3.6 W.Dr.ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Balls for ball mills are never made of Lead Cast iron Forged/cast steel Alloy steel Lead Cast iron Forged/cast steel Alloy steel ANSWER DOWNLOAD EXAMIANS APP
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