Mechanical Operations Which of the following size reduction equipments employs mainly attrition for ultrafine grinding? All of these Jet mills Micronizer Fluid energy mill All of these Jet mills Micronizer Fluid energy mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A 30% (by volume) suspension of spherical sand particles in a viscous oil has a hindered settling velocity of 4.44 μm/s. If the Richardson Zaki hindered settling index is 4.5, then the terminal velocity of a sand grain is 1 μm/s 0.02 μm/s 22.1 μm/s 0.90 μm/s 1 μm/s 0.02 μm/s 22.1 μm/s 0.90 μm/s ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Complicates handling of the product Gives less wear on chamber walls Requires more energy Increases capacity Complicates handling of the product Gives less wear on chamber walls Requires more energy Increases capacity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For a sphere falling in the constant drag co-efficient regime, its terminal velocity depends on its diameter (d) as D √d D² 1/d D √d D² 1/d ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A sand mixture was screened through a standard 10-mesh screen. The mass fraction of the oversize material in feed, overflow and underflow were found to be 0.38, 0.79 and 0.22 respectively. The screen effectiveness based on the oversize is 0.62 0.68 0.58 0.5 0.62 0.68 0.58 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following comes in the category of primary crusher for hard and tough stone? Cone crusher Jaw crusher Gyratory crusher None of these Cone crusher Jaw crusher Gyratory crusher None of these ANSWER DOWNLOAD EXAMIANS APP
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