Mechanical Operations Crushing efficiency of a machine ranges between __________ percent. 5 to 10 20 to 25 50 to 70 0.1 to 2 5 to 10 20 to 25 50 to 70 0.1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rod mills employed for grinding 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 Is useful for handling sticky materials All of these Employ a steel shell having L/D ratio of 1.5 to 3.0 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For Indian standard (IS) screens, the mesh number is equal to its aperture size expressed to the nearest deca-micron (0.01 mm). Aperture width of IS screen of mesh number 50 will be approximately __________ microns. 5 5000 50 500 5 5000 50 500 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Balls for ball mills are never made of Cast iron Forged/cast steel Alloy steel Lead Cast iron Forged/cast steel Alloy steel Lead ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Specific surface area is the surface area of a unit __________ of materials. Volume Neither A nor B Weight Either A or B Volume Neither A nor B Weight Either A or B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Ore concentration by jigging is based on the difference in the __________ of the particles. Wettability Specific gravities Shape None of these Wettability Specific gravities Shape None of these ANSWER DOWNLOAD EXAMIANS APP
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