Mechanical Operations Crushing efficiency is the ratio of the Energy absorbed by the solid to that fed to the machine Surface energy created by crushing to the energy absorbed by the solid Energy absorbed by the solid to the surface energy created by crushing Energy fed to the machine to the surface energy created by crushing Energy absorbed by the solid to that fed to the machine Surface energy created by crushing to the energy absorbed by the solid Energy absorbed by the solid to the surface energy created by crushing Energy fed to the machine to the surface energy created by crushing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following gives the work required for size reduction of coal to -200 mesh in a ball mill most accurately ? Bond's law Kick's law None of these Rittinger's law Bond's law Kick's law None of these Rittinger's law ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size ) 1/s . c C/s S . c S/c 1/s . c C/s S . c S/c ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Tube mill Toothed roll crusher Ball mill Gyratory crusher Tube mill Toothed roll crusher Ball mill Gyratory crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Apron conveyors are used for Small loads & long runs Heavy loads & long runs Heavy loads & short runs None of these Small loads & long runs Heavy loads & long runs Heavy loads & short runs None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The inlet pressure in a constant rate filtration Remains constant Increases continuously Decreases gradually None of these Remains constant Increases continuously Decreases gradually None of these ANSWER DOWNLOAD EXAMIANS APP
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