61.
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

63.
For efficient grinding, ball mills must be operated

64.
Rittinger's crushing law states that

65.
Work index is the gross energy (kWh/tonne of feed) necessary to reduce a very large feed to such a size that 80% of product particles will pass through a 0.1 mm screen. The value of work index determined for wet grinding should be multiplied with __________ to get the same for dry grinding.

Read More Section(Mechanical Operations)

Each Section contains maximum 70 questions. To get more questions visit other sections.