Mechanical Operations For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as Np ∝ √NRe Np → constant Np ∝ 1/NRe Np ∝ NRe Np ∝ √NRe Np → constant Np ∝ 1/NRe Np ∝ NRe ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sauter mean diameter is the same as the __________ mean diameter. Mass Volume-surface Arithmetic Geometric Mass Volume-surface Arithmetic Geometric ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Dispersion of a gas through liquid is done by using a Masticator Kneader None of these Sparger Masticator Kneader None of these Sparger ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? Spiralling Panning Tabling None of these Spiralling Panning Tabling None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 200 mesh seive size corresponds to __________ microns. 154 74 24 200 154 74 24 200 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 25.4 kWh/ton 6.35 kWh/ton 9.0 kWh/ton 18 kWh/ton 25.4 kWh/ton 6.35 kWh/ton 9.0 kWh/ton 18 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS