Mechanical Operations 200 mesh seive size corresponds to __________ microns. 74 200 154 24 74 200 154 24 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For the preliminary breaking of hard rock, we use a Squirrel-cage disintegrator Gyratory crusher Tube mill Ball mill Squirrel-cage disintegrator Gyratory crusher Tube mill Ball mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the usual value of angle of nip for crushing of ordinary rock in smooth steel crushing rolls? 16° 32° 46° 40° 16° 32° 46° 40° 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 Crushing of mineral particles is accomplished in a 'cage mill', when one or more alloy steel bars are revolved in opposite directions. It is a type of __________ mill. Impact None of these Roll Vibratory Impact None of these Roll Vibratory ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle). 6.V/D.S V/D.S S/V V/6D.S 6.V/D.S V/D.S S/V V/6D.S ANSWER DOWNLOAD EXAMIANS APP
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