The diameter of a ball mill is 3 m and the diameter of the balls in the ball mill is 50 cm. What is the critical speed of the ball mill?
A. 26.76 rev/min
B. 53.52 rev/min
C. 25.81 rev/min
D. 30.45 rev/min
Answer: Option A
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A separation dependent on optical and radioactive properties is called
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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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