Mechanical Operations Close circuit grinding by a ball mill with air sweeping employs a Cyclone separator between mill & classifier Neither A nor B Both A & B Classifier Cyclone separator between mill & classifier Neither A nor B Both A & B Classifier ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ centrifuge is normally used in sugar mills. Disc-bowl Perforated horizontal basket continuous Suspended batch basket Tubular bowl Disc-bowl Perforated horizontal basket continuous Suspended batch basket Tubular bowl ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A suspension of glass beads in ethylene glycol has a hindered settling velocity of 1.7 mm/s, while the terminal settling velocity of a single glass bead in ethylene glycol is 17 mm/s. If the Richardson-Zaki hindered settling index is 4.5, the volume fraction of solids in the suspension is None of these 0.1 0.4 0.6 None of these 0.1 0.4 0.6 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to N° N¹ N³ N² N° N¹ N³ N² ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not a wet classifier? Sharpies supercentrifuge None of these Hydrocyclones Dorr Oliver rake classifier Sharpies supercentrifuge None of these Hydrocyclones Dorr Oliver rake classifier ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A compressible cake has the Same porosity throughout the cake thickness Maximum porosity at the upstream side Maximum porosity at the filter medium None of these Same porosity throughout the cake thickness Maximum porosity at the upstream side Maximum porosity at the filter medium None of these ANSWER DOWNLOAD EXAMIANS APP
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