Mechanical Operations The speed of a rotary drum vacuum filter may be about __________ rpm. 1 500 100 50 1 500 100 50 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tank filter (e.g., Nutsch filter) is Used for small scale filtration work A high pressure filter A continuous filter A leaf filter Used for small scale filtration work A high pressure filter A continuous filter A leaf filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ). √μ 1/μ² 1/μ 1/√μ √μ 1/μ² 1/μ 1/√μ 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 6.35 kWh/ton 18 kWh/ton 9.0 kWh/ton 25.4 kWh/ton 6.35 kWh/ton 18 kWh/ton 9.0 kWh/ton 25.4 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Equivalent diameter of a particle is the diameter of the sphere having the same Volume as the particle Ratio of surface to volume as the actual volume Ratio of volume to surface as the particle None of these Volume as the particle Ratio of surface to volume as the actual volume Ratio of volume to surface as the particle None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tabular bowl centrifuges as compared to disk bowl centrifuges Can't be used for separation of fine suspended solids from a liquid Employ bowl of larger diameter Operate at higher speed Can not be operated under pressure/vacuum Can't be used for separation of fine suspended solids from a liquid Employ bowl of larger diameter Operate at higher speed Can not be operated under pressure/vacuum ANSWER DOWNLOAD EXAMIANS APP
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