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 Which of the following is a pressure filter? Sand filter Leaf filter (Moore filter) Plate and flame filter Rotary drum filter Sand filter Leaf filter (Moore filter) Plate and flame filter Rotary drum filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Stamp mills are generally used for crushing Iron ores Diamond Gold ores Talc Iron ores Diamond Gold ores Talc ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Soft & non-abrasive materials can be made into fines by None of these Cutting Compression Attrition None of these Cutting Compression Attrition ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Capacity (in tons/hr) of jaw/gyratory crusher is equal to (where, L = length of the receiving opening, cm S = greater width of the discharge opening, cm) L.S/0.087 0.087 L.S L.S 0.01 L.S L.S/0.087 0.087 L.S L.S 0.01 L.S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Colloidal mills are used for __________ grinding. Coarse Ultrafine Intermediate Fine Coarse Ultrafine Intermediate Fine ANSWER DOWNLOAD EXAMIANS APP
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