Mechanical Operations As particle size is reduced None of these Screening becomes progressively more difficult Capacity and effectiveness of the screen is increased Screening becomes progressively easier None of these Screening becomes progressively more difficult Capacity and effectiveness of the screen is increased Screening becomes progressively easier ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pine oil used in froth floatation technique acts as a/an Collector Modifier Activator Frother Collector Modifier Activator Frother ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following parts of a jaw crusher is subjected to maximum wear and tear during its operation? Jaw plates Check plates Toggles Crush shaft Jaw plates Check plates Toggles Crush shaft ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Crushing efficiency is the ratio of the Surface energy created by crushing to the energy absorbed by the solid Energy fed to the machine to the surface energy created by crushing Energy absorbed by the solid 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 fed to the machine to the surface energy created by crushing Energy absorbed by the solid to the surface energy created by crushing Energy absorbed by the solid to that fed to the machine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as Np ∝ √NRe Np ∝ 1/NRe Np ∝ NRe Np → constant Np ∝ √NRe Np ∝ 1/NRe Np ∝ NRe Np → constant ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a ball mill, Coarse feed requires a larger ball None of these Operating speed should be more than the critical speed Fine feed requires a larger ball Coarse feed requires a larger ball None of these Operating speed should be more than the critical speed Fine feed requires a larger ball ANSWER DOWNLOAD EXAMIANS APP
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