Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. Shape Wettability None of these Specific gravities Shape Wettability None of these Specific gravities ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. 0.3 0.014 50 0.007 0.3 0.014 50 0.007 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a fine crusher? Dodge jaw crusher Toothed roll crusher Gyratory crusher Blake jaw crusher Dodge jaw crusher Toothed roll crusher Gyratory crusher Blake jaw crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of sherical particles is proportional to (where, Dp = diameter of particle). Dp 1/Dp D²p 1/D²p Dp 1/Dp D²p 1/D²p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, Reduction ratio can be varied by adjusting the distance from cage to hammers Crushing takes place by impact breaking Maximum acceptable feed size is 30 cms All of these Reduction ratio can be varied by adjusting the distance from cage to hammers Crushing takes place by impact breaking Maximum acceptable feed size is 30 cms All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle). 12/D.p 2/D.p 6/D.p 4/D.p 12/D.p 2/D.p 6/D.p 4/D.p ANSWER DOWNLOAD EXAMIANS APP
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