Mechanical Operations The speed of a rotary drum vacuum filter may be about __________ rpm. 50 100 500 1 50 100 500 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is 2250 230 1125 460 2250 230 1125 460 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 V.W.Dr/ρ 3.6 V.W. ρ 3.6 W.Dr.ρ 3.6 V.W.Dr.ρ 3.6 V.W.Dr/ρ 3.6 V.W. ρ 3.6 W.Dr.ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the Heavy tonnages of rocks or gravel Dry chemicals Powdered food & granular materials Light metal powder down upto 4 meshsize Heavy tonnages of rocks or gravel Dry chemicals Powdered food & granular materials Light metal powder down upto 4 meshsize ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is Added to the feed slurry Precoated on the filter medium prior to filtration All of these Separated from the cake by dissolving solids or by burning it off Added to the feed slurry Precoated on the filter medium prior to filtration All of these Separated from the cake by dissolving solids or by burning it off ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not categorised as a "mechanical operation"? Humidification Filtration Size enlargement Agitation Humidification Filtration Size enlargement Agitation ANSWER DOWNLOAD EXAMIANS APP
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