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 Wet grinding in high viscous suspension Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) Dry grindng of large particles in un-baffed mills Wet grinding in high viscous suspension Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is expressed in terms of Tons/hr Both A & B Tons/ft² Tons/hr-ft² Tons/hr Both A & B Tons/ft² Tons/hr-ft² ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter aid is used to Increase the rate of filtration Decrease the pressure drop Act as a support base for the septum Increase the porosity of the cake Increase the rate of filtration Decrease the pressure drop Act as a support base for the septum Increase the porosity of the cake ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The filtrate flow rate in constant pressure filtration Continuously increases Remains constant throughout Continuously decreases May increase or decrease ; depends on the pressure Continuously increases Remains constant throughout Continuously decreases May increase or decrease ; depends on the pressure ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For transporting pasty material, one will use a/an Belt conveyor Screw colaveyor Bucket elevator Apron conveyor Belt conveyor Screw colaveyor Bucket elevator Apron conveyor ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Short distance transportation of grain, gravel, sand, ash, asphalt etc. is done by using a __________ conveyor. Screw Ribbon Slat or drag Flight Screw Ribbon Slat or drag Flight ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS