Mechanical Operations Work index is defined as the Energy needed to crush one tonne of feed to 200 microns Energy needed to crush one ton of feed to 100 microns Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Energy needed to crush one tonne of feed to 200 microns Energy needed to crush one ton of feed to 100 microns Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a batch sedimentation equipment? Rotary sprayer scrubber Dry cyclone separator Filter thickener Dust catcher Rotary sprayer scrubber Dry cyclone separator Filter thickener Dust catcher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines? Compartment mill Tube mill Rod mill Pebble mill Compartment mill Tube mill Rod mill Pebble mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations increasing the capacity of a screen __________ the screen effectiveness. Decreases Does not effect Increases None of these Decreases Does not effect Increases None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following oxides is not present in hematite iron ore? Calcium oxide Titanium oxide Cobalt oxide Manganese oxide Calcium oxide Titanium oxide Cobalt oxide Manganese oxide ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not accomplished by agitation of liquids in agitators? Suspending solid particles Dispersing gas in liquid Blending of immiscible liquids Dispersing immiscible liquid in form of emulsion Suspending solid particles Dispersing gas in liquid Blending of immiscible liquids Dispersing immiscible liquid in form of emulsion ANSWER DOWNLOAD EXAMIANS APP
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