Chemical Engineering - Mechanical Operations - Discussion

Discussion Forum : Mechanical Operations - Section 1 (Q.No. 13)
13.
Which of the following relationships between co-efficinet of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct ?
μ > tan α
μ ≥ tan α
μ > tan 2α
μ ≤ tan α
Answer: Option
Explanation:
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