Mechanical Operations Which of the following is a batch sedimentation equipment? Dry cyclone separator Filter thickener Dust catcher Rotary sprayer scrubber Dry cyclone separator Filter thickener Dust catcher Rotary sprayer scrubber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill as compared to a ball mill Gives finer size reduction but consumes more power All of these Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Employs smaller balls Gives finer size reduction but consumes more power All of these Has larger length/diameter ratio (>2 as compared to 1 for ball mill) Employs smaller balls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle). 4/D.p 2/D.p 12/D.p 6/D.p 4/D.p 2/D.p 12/D.p 6/D.p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gizzlies are used for separating __________ solids. Fine None of these Coarse Any size Fine None of these Coarse Any size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A compressible cake has the Maximum porosity at the upstream side Maximum porosity at the filter medium Same porosity throughout the cake thickness None of these Maximum porosity at the upstream side Maximum porosity at the filter medium Same porosity throughout the cake thickness None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is 9.0 kWh/ton 18 kWh/ton 6.35 kWh/ton 25.4 kWh/ton 9.0 kWh/ton 18 kWh/ton 6.35 kWh/ton 25.4 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
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