Mechanical Operations Rod mills employed for grinding Is useful for handling sticky materials All of these Employ a steel shell having L/D ratio of 1.5 to 3.0 Employ steel rods of 2-12 cms diameter extending over full length of the mill Is useful for handling sticky materials All of these Employ a steel shell having L/D ratio of 1.5 to 3.0 Employ steel rods of 2-12 cms diameter extending over full length of the mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as N ∝ 1/√D N ∝ √D N ∝ D N ∝ 1/D N ∝ 1/√D N ∝ √D N ∝ D N ∝ 1/D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The study on washability of coal is done by using the __________ technique. Heavy media separation Tabling Elutriation None of these Heavy media separation Tabling Elutriation None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following size reduction equipments employs mainly attrition for ultrafine grinding? Micronizer All of these Jet mills Fluid energy mill Micronizer All of these Jet mills Fluid energy mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through Neither 5 mm nor 10 mm screen Both 5 mm and 10 mm screens 5 mm screen and retained on 10 mm screen 10 mm screen and retained on 5 mm screen Neither 5 mm nor 10 mm screen Both 5 mm and 10 mm screens 5 mm screen and retained on 10 mm screen 10 mm screen and retained on 5 mm screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reduction ratio of crushers is the Ratio of feed opening to discharge opening None of these Determining factor for minimum dia of the feed and the product Ratio of discharge opening to feed opening Ratio of feed opening to discharge opening None of these Determining factor for minimum dia of the feed and the product Ratio of discharge opening to feed opening ANSWER DOWNLOAD EXAMIANS APP
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