The main size reduction operation in ultrafine grinders is_____________?

Related Mcqs:

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

A. Nc = (1/4π). √(g/R1 – R2) B. Nc = (1/2π). √(g/R1 – R2) C. Nc = (1/π). √(g/R1 – R2) D. Nc = (1/2π). √(R1 – R2/g)...

Which of the following achieves the least reduction ratio for a given feed size ?

A. Jaw crusher B. Roll crusher C. Cone crusher D. Gyratory crusher...

increasing the capacity of a screen _______________ the screen effectiveness?

A. Decreases B. Increases C. Does not effect D. None of these...

The specific cake resistance for compressible sludges is a function of the pressure drop__________________?

A. Over cake B. Over medium C. Overall D. None of these...

Which of the following is not an industrial screening equipment ?

A. Sharpies centrifuge B. Vibrating screen C. Grizzly D. Trommel...