Which of the following relationships between co-efficient of friction (μ) between rock & roll and a (half of the angle of nip) of the particle to be crushed is correct ?

Related Mcqs:

Length/diameter ratio of a ball mill is __________________ ?

A. 1.5 B. 1 C. < 1 D. > 1...

Bond crushing law_________________?

A. Calls for relatively less energy for the smaller product particles, than does the Rittinger law B. Is less realistic in estimating the power requirements of commercial crushers C. States that the work required to form particle of any size from very large feed is proportional to the square root of the volume to surface … Bond crushing law_________________?Read More...

The opening of a 200 mesh screen (Taylor series) is__________________?

A. 0.0074 cm B. 0.0074 mm C. 0.0047 cm D. 74 milli-microns...

In continuous filtration (at a constant pressure drop), filtrate flow rate varies inversely as the__________________?

A. Square root of the velocity B. Square of the viscosity C. Filtration time only D. Washing time only...

Separation of materials into products based on the difference of their sizes is called___________________?

A. Sizing B. Sorting C. Classification D. Flocculation...