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? Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in high viscous suspension Wet grinding in low viscous suspension Dry grindng of large particles in un-baffed mills Dry grinding of large particles (upto 1.25 cms) Wet grinding in high viscous suspension Wet grinding in low viscous suspension ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a vacuum filter? Batch basket centrifuge Rotary disc filter Filter press Tank filter (Nutsch filter) Batch basket centrifuge Rotary disc filter Filter press Tank filter (Nutsch filter) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations To remove very small amount of tiny solid impurities from liquid, we use a Centrifugal filter Vacuum filter Pressure filter Coagulant Centrifugal filter Vacuum filter Pressure filter Coagulant ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ are used for the separation of coarse particles from a slurry of fine particles. Classifiers Hydrocyclones Thickeners Decanters Classifiers Hydrocyclones Thickeners Decanters ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the Powdered food & granular materials Dry chemicals Light metal powder down upto 4 meshsize Heavy tonnages of rocks or gravel Powdered food & granular materials Dry chemicals Light metal powder down upto 4 meshsize Heavy tonnages of rocks or gravel ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For transporting pasty material, one will use a/an Apron conveyor Screw colaveyor Bucket elevator Belt conveyor Apron conveyor Screw colaveyor Bucket elevator Belt conveyor ANSWER DOWNLOAD EXAMIANS APP
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