Mechanical Operations Optimum ratio of operating speed to critical speed of a trommel is 1.5-2.5 0.33-0.45 1.33-1.45 0.5-2 1.5-2.5 0.33-0.45 1.33-1.45 0.5-2 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For benefication of iron ore, the most commonly used method is Froth floatation Jigging & tabling None of these Flocculation Froth floatation Jigging & tabling None of these Flocculation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If a force greater than that of gravity is used to separate solids & fluids of different densities, the process is termed as the Flocculation Sedimentation Centrifugation Dispersion Flocculation Sedimentation Centrifugation Dispersion ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size measurement of ultrafine particles can be best expressed in terms of Centimetre Surface area per unit mass Micron Screen size Centimetre Surface area per unit mass Micron Screen size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For the preliminary breaking of hard rock, we use a Squirrel-cage disintegrator Ball mill Tube mill Gyratory crusher Squirrel-cage disintegrator Ball mill Tube mill Gyratory crusher 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)²p √(S/V)p (S/V)f (S/V)p (S/V)²p √(S/V)p (S/V)f (S/V)p ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS