Mechanical Operations The most efficient equipment for the removal of sub-micronic dust particles from blast furnace gas is the Venturi atomiser Cyclone separator Electro-static precipitator Gravity settling chamber Venturi atomiser Cyclone separator Electro-static precipitator Gravity settling chamber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The resistance offered by the filter used in a bag filter is proportional to (where, c = dust concentration, and s = particle size ) S . c 1/s . c C/s S/c S . c 1/s . c C/s S/c ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Production rate __________ with increased fineness, with a given energy input to the size reduction machine. Decreases May increase or decrease; depends on the machine Remains unchanged Increases Decreases May increase or decrease; depends on the machine Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Ultrafine Primary Fine Secondary Ultrafine Primary Fine Secondary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a roll crusher, the specific power consumption and the production rate is affected by the Neither A nor B Both A & B Differential roll speed Reduction ratio Neither A nor B Both A & B Differential roll speed Reduction ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not accomplished by agitation of liquids in agitators? Dispersing immiscible liquid in form of emulsion Dispersing gas in liquid Blending of immiscible liquids Suspending solid particles Dispersing immiscible liquid in form of emulsion Dispersing gas in liquid Blending of immiscible liquids Suspending solid particles ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS