Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through 5 mm screen and retained on 10 mm screen Both 5 mm and 10 mm screens Neither 5 mm nor 10 mm screen 10 mm screen and retained on 5 mm screen 5 mm screen and retained on 10 mm screen Both 5 mm and 10 mm screens Neither 5 mm nor 10 mm screen 10 mm screen and retained on 5 mm screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following may prove unsuitable for filtering volatile liquids? Vacuum filter Pressure filter Gravity filter Centrifugal filter Vacuum filter Pressure filter Gravity filter Centrifugal filter 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 grindng of large particles in un-baffed mills Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) Wet grinding in high viscous suspension Dry grindng of large particles in un-baffed mills Wet grinding in low viscous suspension Dry grinding of large particles (upto 1.25 cms) Wet grinding in high viscous suspension ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations With increase in drum speed, in a rotary drum filter, the filtration rate Is not affected Increases linearly Increases Decreases Is not affected Increases linearly Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Wheat is ground into flour in a Hammer crusher Impact mill Fluid energy mill Roller crusher Hammer crusher Impact mill Fluid energy mill Roller crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The crushed material received for separation is called feed or Heading Tailing Concentrate Middling Heading Tailing Concentrate Middling ANSWER DOWNLOAD EXAMIANS APP