Mechanical Operations Number of particles in a crushed solid sample is given by (where, m = mass of particles in a sample, Vp = volume of one particle, ρ= density of particles) Vp/m . ρ M . ρ/Vp M . Vp/ρ M/ρ . Vp Vp/m . ρ M . ρ/Vp M . Vp/ρ M/ρ . Vp ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The distribution given by microscopic analysis of powder is Number Volume Area Length Number Volume Area Length ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The opening of a 200 mesh screen (Taylor series) is 0.0074 cm 74 mili-microns 0.0074 mm 0.0047 cm 0.0074 cm 74 mili-microns 0.0074 mm 0.0047 cm ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For achieving maximum capacity of the ball mill, the ball charge should be equal to about __________ percent of the ball mill volume. 25 10 75 50 25 10 75 50 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 filtrate flow rate in constant pressure filtration May increase or decrease ; depends on the pressure Continuously increases Remains constant throughout Continuously decreases May increase or decrease ; depends on the pressure Continuously increases Remains constant throughout Continuously decreases ANSWER DOWNLOAD EXAMIANS APP
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