The grinding in a hammer crusher takes place due to the_______________?

Related Mcqs:

Higher is the mesh number, smaller will be the aperture size of the screen. It means that the aperture size of a 200 mesh screen will be smaller than that of 20 mesh screen. This is valid for__________________?

A. British standard screens B. German standard screens (DIN 1171) etc C. American standard screens (ASTM and Tyler standard screens) D. All A., B. and C....

Washability curve based on float and sink test enables an assessment to be made of the possibility of cleaning a coal fraction based on the____________________?

A. Density separation B. Differential wettability C. Size D. Volatile matter content...

As particle size is reduced__________________?

A. Screening becomes progressively more difficult B. Screening becomes progressively easier C. Capacity and effectiveness of the screen is increased D. None of these...

_____________ mills are termed as impactors?

A. Hammer B. Cage C. Rolling-compression D. None of these...

Which of the following is not a wet classifier ?

A. Sharpies super-centrifuge B. Hydrocyclones C. Dorr Oliver rake classifier D. None of these...