Mechanical Operations Size reduction mechanism used in Jaw crushers is Impact Compression Cutting Attrition Impact Compression Cutting Attrition 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)f (S/V)²p (S/V)p √(S/V)p (S/V)f (S/V)²p (S/V)p 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 Wi 0.5 Wi 3.34 Wi 1.34 Wi Wi 0.5 Wi 3.34 Wi 1.34 Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) None of these π(=A/D²) π/6(=V/D³) AD/V None of these π(=A/D²) π/6(=V/D³) AD/V ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not accomplished by agitation of liquids in agitators? Dispersing immiscible liquid in form of emulsion Dispersing gas in liquid Suspending solid particles Blending of immiscible liquids Dispersing immiscible liquid in form of emulsion Dispersing gas in liquid Suspending solid particles Blending of immiscible liquids ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Production rate __________ with increased fineness, with a given energy input to the size reduction machine. Decreases May increase or decrease; depends on the machine Increases Remains unchanged Decreases May increase or decrease; depends on the machine Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP