Mechanical Operations During agitation of liquids, power consumption during laminar flow is not proportional to the Viscosity of the liquid Square of rotational speed Cube of impeller diameters Density of the liquid Viscosity of the liquid Square of rotational speed Cube of impeller diameters Density of the liquid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a Sparkler filter Sharpies supercentrifuge Disc bowl centrifuge Batch basket centrifuge Sparkler filter Sharpies supercentrifuge Disc bowl centrifuge Batch basket centrifuge ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. Specific gravities None of these Shape Wettability Specific gravities None of these Shape Wettability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the Capacity of centrifuge is increased Centrifugal force is doubled Linear speed of the basket is doubled Linear speed of the basket is halved Capacity of centrifuge is increased Centrifugal force is doubled Linear speed of the basket is doubled Linear speed of the basket is halved 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.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 3.6 V.W. ρ 3.6 V.W.Dr.ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following achieves the least reduction ratio for a given feed size? Cone crusher Jaw crusher Roll crusher Gyratory crusher Cone crusher Jaw crusher Roll crusher Gyratory crusher ANSWER DOWNLOAD EXAMIANS APP
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