Mechanical Operations The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be 0.5 Wi 1.34 Wi 3.34 Wi Wi 0.5 Wi 1.34 Wi 3.34 Wi Wi ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following size reduction equipments employs mainly attrition for ultrafine grinding? Fluid energy mill Micronizer Jet mills All of these Fluid energy mill Micronizer Jet mills All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Molten ammonium nitrate is mixed with ground limestone in fertilizer plant in a Muller mixer Pug mill Mixer-extruder Banbury mixer Muller mixer Pug mill Mixer-extruder Banbury mixer 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° N³ N¹ N² N° N³ N¹ N² 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 0.4 0.1 None of these 0.6 0.4 0.1 None of these 0.6 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following parts of a jaw crusher is subjected to maximum wear and tear during its operation? Check plates Jaw plates Toggles Crush shaft Check plates Jaw plates Toggles Crush shaft ANSWER DOWNLOAD EXAMIANS APP
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