Mechanical Operations In froth floatation, chemical agent added to cause air adherence is called Activator Modifier Collector Frother Activator Modifier Collector Frother ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations If radius of a batch basket centrifuge is halved & the r.p.m. is doubled, then the Capacity of centrifuge is increased Linear speed of the basket is halved Linear speed of the basket is doubled Centrifugal force is doubled Capacity of centrifuge is increased Linear speed of the basket is halved Linear speed of the basket is doubled Centrifugal force is doubled ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ conveyor is the most suitable for long distance transportation of cold, non-abrasive granular/irregular shape/fine materials. Apron Bucket Belt Screw Apron Bucket Belt Screw ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Both A & B Feed material Type of crushing machine Neither A nor B Both A & B Feed material Type of crushing machine Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Actual operating speed of a ball mill may vary from 65 to 80% of the critical speed. Which of the following duties would require the ball mill to be operated at maximum percentage of critical speed? Wet grinding in high viscous suspension Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Dry grindng of large particles in un-baffed mills Wet grinding in high viscous suspension Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Dry grindng of large particles in un-baffed mills ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter. Sand Plate & frame Rotary Vacuum Sand Plate & frame Rotary Vacuum ANSWER DOWNLOAD EXAMIANS APP
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