Mechanical Operations Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation. Sedimentation Flocculation Clarification Classification Sedimentation Flocculation Clarification Classification 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? 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 Dry grindng of large particles in un-baffed mills ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a Mixer-extruder Pug mill Muller mixer Banbury mixer Mixer-extruder Pug mill Muller mixer Banbury mixer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not an ultrafine grinder (colloid mill)? Agitated mills and fluid energy mills Toothed roll crusher Micronizers Hammer mills with internal classification Agitated mills and fluid energy mills Toothed roll crusher Micronizers Hammer mills with internal classification ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Maximum size reduction in a fluid energy mill is achieved by Compression Interparticle attrition Cutting Impact Compression Interparticle attrition Cutting Impact ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following minerals is not subjected to magnetic separation method? Rutile Chromite Galena Siderite Rutile Chromite Galena Siderite ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS