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 grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension Wet grinding in high viscous suspension Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in low viscous suspension ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable equipment used to devulcanise rubber scrap and to make water dispersion & rubber solution is a Boundary mixer None of these Sharpies centrifuge Propeller agitator Boundary mixer None of these Sharpies centrifuge Propeller agitator ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which is the most suitable conveyor for transportation of sticky material? Apron conveyor Screw conveyor Belt conveyor Pneumatic conveyor Apron conveyor Screw conveyor Belt conveyor Pneumatic conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration should be stopped in a filter press, if the Cake becomes very dense Filtration pressure rises suddenly Both A & B Liquor stops flowing out to the discharge Cake becomes very dense Filtration pressure rises suddenly Both A & B Liquor stops flowing out to the discharge ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations To remove very small amount of tiny solid impurities from liquid, we use a Pressure filter Vacuum filter Coagulant Centrifugal filter Pressure filter Vacuum filter Coagulant Centrifugal filter ANSWER DOWNLOAD EXAMIANS APP
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