Mechanical Operations In bag filters, filter fabrics are never made of Cotton fibres Metallic wire woven mesh Nylon fibres Polyester fibres Cotton fibres Metallic wire woven mesh Nylon fibres Polyester fibres ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific cake resistance for compressible sludges is a function of the pressure drop None of these Overall Over medium Over cake None of these Overall Over medium Over cake ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The constants (Kb, Kr and Kk) used in the laws of crushing (i.e., Bond's law, Rittinger's law and Kick's law) depend upon the Type of crushing machine Feed material Neither A nor B Both A & B Type of crushing machine Feed material Neither A nor B Both A & B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screen capacity is proportional to (where, S = screen aperture) S² 1/S S √S S² 1/S S √S ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of a suspension or slurry into a supernatant clear liquid (free from particles) and a thick sludge containing a high concentration of solid is called Classification Sedimentation Decantation Clarification Classification Sedimentation Decantation Clarification 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? Wet grinding in low viscous suspension Wet grinding in high viscous suspension Dry grinding of large particles (upto 1.25 cms) Dry grindng of large particles in un-baffed mills Wet grinding in low viscous suspension Wet grinding in high viscous suspension Dry grinding of large particles (upto 1.25 cms) Dry grindng of large particles in un-baffed mills ANSWER DOWNLOAD EXAMIANS APP
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