Mechanical Operations In case of a hammer crusher, All of these Maximum acceptable feed size is 30 cms Reduction ratio can be varied by adjusting the distance from cage to hammers Crushing takes place by impact breaking All of these Maximum acceptable feed size is 30 cms Reduction ratio can be varied by adjusting the distance from cage to hammers Crushing takes place by impact breaking ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of baffles in agitators help in minimising the __________ tendency. Neither A nor B Swirling Both A & B Vortexing Neither A nor B Swirling Both A & B Vortexing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in drum speed, in a rotary drum filter, the filtration rate Increases linearly Increases Decreases Is not affected Increases linearly Increases Decreases Is not affected 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 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 3.6 V.W.Dr.ρ 3.6 V.W.Dr/ρ 3.6 V.W. ρ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The sphericity of a solid particle of cubical shape is π/3 (π/6)1/2 π (π/6)1/3 π/3 (π/6)1/2 π (π/6)1/3 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of grinding in a ball mill Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products All of these Wet grinding achieves a finer product size than dry grinding Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products All of these Wet grinding achieves a finer product size than dry grinding ANSWER DOWNLOAD EXAMIANS APP
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