Mechanical Operations A tube mill compared to a ball mill Has a higher length/diameter ratio Uses much larger balls Has a higher diameter/length ratio Produces a coarser product Has a higher length/diameter ratio Uses much larger balls Has a higher diameter/length ratio Produces a coarser product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called Thickening Froth floatation Clarification Classification Thickening Froth floatation Clarification Classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is the most suitable for handling fibrous and dense slurries? Turbine agitator Propeller agitator Radial propeller agitator Cone type agitator Turbine agitator Propeller agitator Radial propeller agitator Cone type agitator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In constant pressure filtration, Rate of filtration is constant Resistance decreases with time Rate of filtration decreases with time Rate of filtration increases with time Rate of filtration is constant Resistance decreases with time Rate of filtration decreases with time Rate of filtration increases with time ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most common filter aid is Silica gel Calcium silicate Sodium carbonate Diatomaceous earth Silica gel Calcium silicate Sodium carbonate Diatomaceous earth ANSWER DOWNLOAD EXAMIANS APP
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 → constant Np ∝ √NRe Np ∝ 1/NRe Np ∝ NRe Np → constant Np ∝ √NRe Np ∝ 1/NRe Np ∝ NRe ANSWER DOWNLOAD EXAMIANS APP
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