Mechanical Operations Which of the following is not an ultrafine grinder (colloid mill)? Agitated mills and fluid energy mills Hammer mills with internal classification Toothed roll crusher Micronizers Agitated mills and fluid energy mills Hammer mills with internal classification Toothed roll crusher Micronizers ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a cyclone of diameter 0.2 m with a tangential velocity of 15 m/s at the wall, the separation factor is 230 1125 2250 460 230 1125 2250 460 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A tube mill compared to a ball mill Has a higher length/diameter ratio Uses much larger balls Has a higher diameter/length ratio Produces a coarser product Has a higher length/diameter ratio Uses much larger balls Has a higher diameter/length ratio Produces a coarser product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following achieves the least reduction ratio for a given feed size? Roll crusher Jaw crusher Gyratory crusher Cone crusher Roll crusher Jaw crusher Gyratory crusher Cone crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter medium resistance is important during the __________ of filtration. None of these Final stages Early stages Entire process None of these Final stages Early stages Entire process ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. 0.014 0.007 50 0.3 0.014 0.007 50 0.3 ANSWER DOWNLOAD EXAMIANS APP
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