Mechanical Operations Crushing efficiency is the ratio of the Energy absorbed by the solid to that fed to the machine Energy absorbed by the solid to the surface energy created by crushing Energy fed to the machine to the surface energy created by crushing Surface energy created by crushing to the energy absorbed by the solid Energy absorbed by the solid to that fed to the machine Energy absorbed by the solid to the surface energy created by crushing Energy fed to the machine to the surface energy created by crushing Surface energy created by crushing to the energy absorbed by the solid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For spheres, the surface shape factor is given by (where, A = area, V = volume, and D = diameter) π/6(=V/D³) AD/V None of these π(=A/D²) π/6(=V/D³) AD/V None of these π(=A/D²) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Fick's law relates to None of these Energy consumption Feed size Final particle size None of these Energy consumption Feed size Final particle size ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Horsepower required for a roll crusher is directly proportional to its Capacity Both A & B Reduction ratio Neither A nor B Capacity Both A & B Reduction ratio Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Trommels separate a mixture of particles depending on their Electrical & magnetic properties Density Size Wettability Electrical & magnetic properties Density Size Wettability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations As particle size is reduced Capacity and effectiveness of the screen is increased Screening becomes progressively easier Screening becomes progressively more difficult None of these Capacity and effectiveness of the screen is increased Screening becomes progressively easier Screening becomes progressively more difficult None of these ANSWER DOWNLOAD EXAMIANS APP
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