One of the greatest problem lies in comminution is
A. the surface area of known particles of uniform diameter is inversely proportional to the diameter
B. the probability of breakage in comminution is high for large particles and rapidly diminishes for fine sizes
C. differences exist in the breakage characteristics depending on variations in the work index
D. that most of the energy input is absorbed by the machine itself and only a fraction is available for breaking the material
Answer: Option D
This Question Belongs to Mining Engineering >> Mineral Dressing In Mining
A separation dependent on optical and radioactive properties is called
A. froth floatation
B. sorting
C. gangue clearance
D. crushing
A. it shows highly skewed distribution
B. burden on routine analysis would be less and relatively few sieves will be needed to check the features of size distribution
C. the linear ordinates avoids significant percentage oversize or undersize
D. this is the only numerical parameter that helps visualizing the relative frequency of occurrence of various sizes present in the material
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