Mechanical Operations Traces of solids are removed from, liquid in a Sparkler filter Classifier Clarifier Rotary vacuum filter Sparkler filter Classifier Clarifier Rotary vacuum filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Activators are those chemicals which help buoying up one mineral in preference to the other in the froth floatation process. Which of the following is an activator? Sodium carbonate Copper sulphate Calcium carbonate Cresylic acid Sodium carbonate Copper sulphate Calcium carbonate Cresylic acid ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pick out the material having minimum Rittinger's number. Quartz Pyrite Calcite Galena Quartz Pyrite Calcite Galena ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following size reduction equipments employs mainly attrition for ultrafine grinding? Fluid energy mill All of these Micronizer Jet mills Fluid energy mill All of these Micronizer Jet mills 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 Wi 3.34 Wi 1.34 Wi 0.5 Wi Wi 3.34 Wi 1.34 Wi 0.5 Wi 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 9.0 kWh/ton 6.35 kWh/ton 25.4 kWh/ton 18 kWh/ton 9.0 kWh/ton 6.35 kWh/ton 25.4 kWh/ton 18 kWh/ton ANSWER DOWNLOAD EXAMIANS APP
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