rpm of a trommel at critical speed is given by (where, = Diameter of

1.	rpm of a trommel at critical speed is given by (where, = Diameter of trommel in ft)
A.	76.75
Answer» C.

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The critical speed of a trommel () is related to its dia () as

rpm of a trommel at critical speed is given by (where, = Diameter of trommel in ft)

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