Mechanical Operations Which of the following oxides is not present in hematite iron ore? Titanium oxide Manganese oxide Cobalt oxide Calcium oxide Titanium oxide Manganese oxide Cobalt oxide Calcium oxide ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations To remove very small amount of tiny solid impurities from liquid, we use a Pressure filter Coagulant Vacuum filter Centrifugal filter Pressure filter Coagulant Vacuum filter Centrifugal filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of grinding in a ball mill All of these Wet grinding achieves a finer product size than dry grinding Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products All of these Wet grinding achieves a finer product size than dry grinding Its capacity decreases with increasing fineness of the products Grinding cost and power requirement increases with increasing fineness of the products ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Addition of filter aid to the slurry before filtration is done to ...... of the cake. Decrease the compressibility co-efficient Decrease the porosity Increase the porosity Increase the compressibility co-efficient Decrease the compressibility co-efficient Decrease the porosity Increase the porosity Increase the compressibility co-efficient ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ultrafine grinders operate principally by Attrition Impact Slow compression Cutting action Attrition Impact Slow compression Cutting action 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 6.35 kWh/ton 25.4 kWh/ton 9.0 kWh/ton 18 kWh/ton 6.35 kWh/ton 25.4 kWh/ton 9.0 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
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