Mechanical Operations Mass flow of granular solid (M) through a circular opening of dia, D follows M ∝ D² M ∝ D³ M ∝ D M ∝ √D M ∝ D² M ∝ D³ M ∝ D M ∝ √D 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 9.0 kWh/ton 18 kWh/ton 6.35 kWh/ton 25.4 kWh/ton 9.0 kWh/ton 18 kWh/ton 6.35 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The grinding in a hammer crusher takes place due to the Both A & B Attrition Neither A nor B Impact Both A & B Attrition Neither A nor B Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Trommels employ __________ for screening of materials. None of these Woven wire screen Fibrous cloth Punched plate None of these Woven wire screen Fibrous cloth Punched plate ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively). (S/V)p (S/V)²p (S/V)f √(S/V)p (S/V)p (S/V)²p (S/V)f √(S/V)p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Addition of filter aid to the slurry before filtration is done to ...... of the cake. Decrease the compressibility co-efficient Increase the porosity Decrease the porosity Increase the compressibility co-efficient Decrease the compressibility co-efficient Increase the porosity Decrease the porosity Increase the compressibility co-efficient ANSWER DOWNLOAD EXAMIANS APP
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