The value of work index does not change materially from one equipment to another. If the value of work index determined for close circuit grinding is Wi, then the same for open circuit grinding will be_________________?

Related Mcqs:

General mechanism of size reduction in intermediate and fine grinder is by __________________?

A. Cutting action B. Compression C. Compression and tearing D. Impact and attrition...

Rittinger number which designates the new surface produced per unit of mechanical energy absorbed by the material being crushed, depends on the ______________________?

A. State or manner of application of the crushing force B. Ultimate strength of the material C. Elastic constant of the material D. All A., B. and C....

Optimum ratio of operating speed to critical speed of a trommel is_____________________?

A. 0.33-0.45 B. 1.33-1.45 C. 0.5-2 D. 1.5-2.5...

Vacuum filter is most suitable for the_______________?

A. Removal of fines from liquid B. Liquids having high vapour pressure C. Liquids of very high viscosity D. None of these...

Which of the following is a pressure filter ?

A. Leaf filter (Moore filter) B. Plate and flame filter C. Rotary drum filter D. Sand filter...