Mechanical Operations If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the Linear speed of the basket is halved Linear speed of the basket is doubled Capacity of centrifuge is increased Centrifugal force is doubled Linear speed of the basket is halved Linear speed of the basket is doubled Capacity of centrifuge is increased Centrifugal force is doubled ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 1.34 Wi 3.34 Wi 0.5 Wi Wi 1.34 Wi 3.34 Wi 0.5 Wi Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During filtration operation, the filtrate encounters the resistance of the Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium Cake All of these Filter medium Channel carrying the slurry to the upstream side of the cake and filtrate away from the filter medium Cake All of these Filter medium ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing. Ultrafine Primary Secondary Fine Ultrafine Primary Secondary Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During washing of filter at the end of constant pressure filtration, the rate of washing equals the rate of filtration At time zero When half the filtrate has been obtained At the end of filtration At the end of filtration, but decreases with time subsequently At time zero When half the filtrate has been obtained At the end of filtration At the end of filtration, but decreases with time subsequently ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter medium resistance is important during the __________ of filtration. Final stages Entire process Early stages None of these Final stages Entire process Early stages None of these ANSWER DOWNLOAD EXAMIANS APP
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