Mechanical Operations A screen is said to be blinded, when the Screen capacity is abruptly increased Undersizes are retained in oversize fraction Oversizes are present in undersize fraction Screen is plugged with solid particles Screen capacity is abruptly increased Undersizes are retained in oversize fraction Oversizes are present in undersize fraction Screen is plugged with solid particles ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sorting classifiers employing differential settling methods for separation of particles make use of the differences in their Densities Terminal velocities Particle sizes None of these Densities Terminal velocities Particle sizes None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy required per unit mass to grind limestone particles of very large size to 100 μm is 12.7 kWh/ton. An estimate (using Bond's law) of the energy to grind the particles from a very large size to 50 μrn is 25.4 kWh/ton 18 kWh/ton 9.0 kWh/ton 6.35 kWh/ton 25.4 kWh/ton 18 kWh/ton 9.0 kWh/ton 6.35 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Maximum size reduction in a ball mill is done by the, __________ action. Compression Cutting Attrition Impact Compression Cutting Attrition Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy consumed by a ball mill depends on Its speed All of these The density of the material being ground Its ball load Its speed All of these The density of the material being ground Its ball load ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which is a secondary crusher for a hard & tough stone? Toothed roll crusher Impact crusher Jaw crusher Cone crusher Toothed roll crusher Impact crusher Jaw crusher Cone crusher ANSWER DOWNLOAD EXAMIANS APP
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