Mechanical Operations A cottrel precipitator makes use of the __________ for dusty air cleaning. Alternating current Corrona discharge Electric spark None of these Alternating current Corrona discharge Electric spark 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 18 kWh/ton 25.4 kWh/ton 9.0 kWh/ton 6.35 kWh/ton 18 kWh/ton 25.4 kWh/ton 9.0 kWh/ton 6.35 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Both A & B Surface active agent Neither A nor B Electrolyte Both A & B Surface active agent Neither A nor B Electrolyte ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mills are termed as disintegrators. Compartment All of these Pebble Cage Compartment All of these Pebble Cage ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a revolving mill, wet grinding compared to dry grinding Complicates handling & classification of the product Requires more energy None of these Has less capacity Complicates handling & classification of the product Requires more energy None of these Has less capacity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations During size reduction by a jaw crusher, the energy consumed decreases with the Decreasing size of product at constant size of feed Increasing size of feed at constant reduction ratio Decreasing machine capacity None of these Decreasing size of product at constant size of feed Increasing size of feed at constant reduction ratio Decreasing machine capacity None of these ANSWER DOWNLOAD EXAMIANS APP
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