Mechanical Operations Which of the following grinding mills has the horizontally arranged rods as the grinding elements thereby delivering more uniform granular products with minimum fines? Compartment mill Rod mill Tube mill Pebble mill Compartment mill Rod mill Tube mill Pebble mill ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a revolving mill, wet grinding compared to dry grinding Requires more energy Has less capacity None of these Complicates handling & classification of the product Requires more energy Has less capacity None of these Complicates handling & classification of the product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Selectivity index Separation efficiency Concentration ratio None of these Selectivity index Separation efficiency Concentration ratio None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the critical rotation speed in revolutions per second, for a ball mill of 1.2 m diameter charged with 70 mm dia balls? 0.66 2.76 1 0.5 0.66 2.76 1 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The capacity of a belt conveyor depends upon two factors. If one is the cross-section of the load, the other is the __________ of the belt. Thickness None of these Length Speed Thickness None of these Length Speed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In screen analysis, the notation +5 mm/-10 mm means particles passing through 5 mm screen and retained on 10 mm screen Both 5 mm and 10 mm screens Neither 5 mm nor 10 mm screen 10 mm screen and retained on 5 mm screen 5 mm screen and retained on 10 mm screen Both 5 mm and 10 mm screens Neither 5 mm nor 10 mm screen 10 mm screen and retained on 5 mm screen ANSWER DOWNLOAD EXAMIANS APP
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