Which of the following is used for primary crushing of very hard lumpy materials? Options: A . &nbspToothed roll crusher B . &nbspGyratory crusher C . &nbspBall mill D . &nbspTube mill

Which of the following is used for primary crushing of very hard lumpy materials

Question

Which of the following is used for primary crushing of very hard lumpy materials?

Options:

A . Toothed roll crusher

B . Gyratory crusher

C . Ball mill

D . Tube mill

Answer: Option B

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