Critical Speed (Nc) of a ball mill is given by (where R1... — Answer & Explanation | PrepBeePakistan

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HomeMCQsChemical Engineering

MEDIUMENGLISHChemical Engineering

Critical Speed (Nc) of a ball mill is given by (where R1 and R2 are radii of ball mill and the ball respectively) ?

Correct answer: B

Explanation

The formula for the critical speed (Nc) of a ball mill is given by Nc = (1/2π). √(g/R1 – R2).

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