Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 1 μm/s 0.90 μm/s 0.02 μm/s 22.1 μm/s 1 μm/s 0.90 μm/s 0.02 μm/s 22.1 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is used for producing a thick suspension from a thin slurry. Cartridge filter Rotary drum vacuum filter Plate and frame filter press Pressure filter thickener Cartridge filter Rotary drum vacuum filter Plate and frame filter press Pressure filter thickener ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Wheat is ground into flour in a Fluid energy mill Hammer crusher Impact mill Roller crusher Fluid energy mill Hammer crusher Impact mill Roller crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy consumed by a ball mill depends on Its speed Its ball load All of these The density of the material being ground Its speed Its ball load All of these The density of the material being ground ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as N ∝ D N ∝ √D N ∝ 1/√D N ∝ 1/D N ∝ D N ∝ √D N ∝ 1/√D N ∝ 1/D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size ) 1/s . c S . c S/c C/s 1/s . c S . c S/c C/s ANSWER DOWNLOAD EXAMIANS APP
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