Mechanical Operations The operating speed of a ball mill should be __________ the critical speed. Slightly more than Much more than Less than At least equal to Slightly more than Much more than Less than At least equal to ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Additives used for promoting the floccula-tion of particles is a/an Neither A nor B Electrolyte Both A & B Surface active agent Neither A nor B Electrolyte Both A & B Surface active agent ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 1.34 Wi 0.5 Wi Wi 3.34 Wi 1.34 Wi 0.5 Wi Wi 3.34 Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size measurement of ultrafine particles can be best expressed in terms of Surface area per unit mass Micron Screen size Centimetre Surface area per unit mass Micron Screen size Centimetre ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A. __________ mill is a revolving mill divided into two or more sections by perforated partitions in which preliminary grinding takes place at one end and the finishing grinding at the discharge end. Tube Compartment Rod Pebble Tube Compartment Rod Pebble ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the Gravity settling chamber Cyclone separator Venturi atomiser Electro-static precipitator Gravity settling chamber Cyclone separator Venturi atomiser Electro-static precipitator ANSWER DOWNLOAD EXAMIANS APP
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