Mechanical Operations General mechanism of size reduction in intermediate and fine grinder is by Impact and attrition Compression Cutting action Compression and tearing Impact and attrition Compression Cutting action Compression and tearing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a grinding operation, the limiting particle size is the size of the __________ particle in the sample. Largest Either A or B Smallest Neither A nor B Largest Either A or B Smallest Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity is the ratio of the surface area of a spherical particle having the same volume as the particle to the surface area of the particle. Which of the following has the maximum value of sphericity? Cylinder (L/D = 1) Cube Raschig rings Sphere Cylinder (L/D = 1) Cube Raschig rings Sphere ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rod mills employed for grinding Employ a steel shell having L/D ratio of 1.5 to 3.0 Is useful for handling sticky materials Employ steel rods of 2-12 cms diameter extending over full length of the mill All of these Employ a steel shell having L/D ratio of 1.5 to 3.0 Is useful for handling sticky materials Employ steel rods of 2-12 cms diameter extending over full length of the mill All of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations For benefication of iron ore, the most commonly used method is None of these Flocculation Froth floatation Jigging & tabling None of these Flocculation Froth floatation Jigging & tabling ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following mineral dressing operations is termed as 'comminution'? None of these Spiralling Tabling Panning None of these Spiralling Tabling Panning ANSWER DOWNLOAD EXAMIANS APP
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