Mechanical Operations For crushing of solids, the Rittinger's law states that the work required for crushing is proportional to None of these The size reduction ratio The change in volume due to crushing The new surface created None of these The size reduction ratio The change in volume due to crushing The new surface created ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tube mill compared to ball mill Produces finer products Uses smaller balls All of these Is long in comparison with its diameter Produces finer products Uses smaller balls All of these Is long in comparison with its diameter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following comes in the category of primary crusher for hard and tough stone? Jaw crusher Cone crusher Gyratory crusher None of these Jaw crusher Cone crusher Gyratory crusher None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. Shape None of these Wettability Specific gravities Shape None of these Wettability Specific gravities ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following screens has the maximum capacity? Trommels Shaking screen Vibrating screen Grizzlies Trommels Shaking screen Vibrating screen Grizzlies 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 ∝ 1/NRe Np → constant Np ∝ NRe Np ∝ √NRe Np ∝ 1/NRe Np → constant Np ∝ NRe ANSWER DOWNLOAD EXAMIANS APP
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