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 6.35 kWh/ton 9.0 kWh/ton 18 kWh/ton 25.4 kWh/ton 6.35 kWh/ton 9.0 kWh/ton 18 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of grinding in a ball mill Grinding cost and power requirement increases with increasing fineness of the products Its capacity decreases with increasing fineness of the products Wet grinding achieves a finer product size than dry grinding All of these Grinding cost and power requirement increases with increasing fineness of the products Its capacity decreases with increasing fineness of the products Wet grinding achieves a finer product size than dry grinding All of these 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
Mechanical Operations General mechanism of size reduction in intermediate and fine grinder is by Cutting action Compression and tearing Impact and attrition Compression Cutting action Compression and tearing Impact and attrition Compression ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A gravity decanter is meant for the separation of two __________ density. Miscible liquids of different Immiscible liquids of different Immiscible liquids of same Miscible liquids of same Miscible liquids of different Immiscible liquids of different Immiscible liquids of same Miscible liquids of same ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The mechanism of size reduction by a hammer mill is by impact and attrition between the Neither A nor B Feed particles Grinding element & the housing Both A & B Neither A nor B Feed particles Grinding element & the housing Both A & B ANSWER DOWNLOAD EXAMIANS APP
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