Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. None of these Specific gravities Shape Wettability None of these Specific gravities Shape Wettability ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rod mills employed for grinding All of these Employ steel rods of 2-12 cms diameter extending over full length of the mill Is useful for handling sticky materials Employ a steel shell having L/D ratio of 1.5 to 3.0 All of these Employ steel rods of 2-12 cms diameter extending over full length of the mill Is useful for handling sticky materials Employ a steel shell having L/D ratio of 1.5 to 3.0 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing. Primary Ultrafine Secondary Fine Primary Ultrafine Secondary Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following agitators having a large blade area, rotating at slow speed is used for mixing high viscosity liquids ( > 50000 centipoise)? Curved blade turbine Flat blade turbine Propeller Helical screw Curved blade turbine Flat blade turbine Propeller Helical screw ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The controlling resistance in a rotary drum vacuum filter is the __________ resistance. None of these Filter medium Piping Cake None of these Filter medium Piping Cake ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Vacuum filter is most suitable for the Liquids having high vapour pressure Removal of fines from liquid None of these Liquids of very high viscosity Liquids having high vapour pressure Removal of fines from liquid None of these Liquids of very high viscosity ANSWER DOWNLOAD EXAMIANS APP
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