Mechanical Operations Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about 10 to 15° 2 to 5° 1 to 2° 5 to 10° 10 to 15° 2 to 5° 1 to 2° 5 to 10° ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The reduction ratio for grinders is defined as(where, Df and Dp are average diameters of feed and product respectively). Df/Dp None of these Df - Dp Dp/Df Df/Dp None of these Df - Dp Dp/Df 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 ∝ √NRe Np ∝ NRe Np ∝ 1/NRe Np → constant Np ∝ √NRe Np ∝ NRe Np ∝ 1/NRe Np → constant ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, the feed size is 10 to 50 mm, while the product size is 2 to 10 mm. This is a case of __________ crushing. Primary Ultrafine Secondary Fine Primary Ultrafine Secondary Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Cake resistance is Independent of pressure drop Decreased with the time of filtration Important in the beginning of filtration None of these Independent of pressure drop Decreased with the time of filtration Important in the beginning of filtration None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Energy consumed for crushing one ton of material ranges from __________ kWh. 2 to 3.5 0.5 to 1.5 0.01 to 0.1 4 to 5 2 to 3.5 0.5 to 1.5 0.01 to 0.1 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
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