Mechanical Operations Work index is defined as the Energy needed to crush one ton of feed to 100 microns Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Energy needed to crush one tonne of feed to 200 microns Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen Energy needed to crush one ton of feed to 100 microns Energy (kWh/ton of feed) needed to crush small feed to such a size that 80% of the product passes a 200 mesh screen Energy needed to crush one tonne of feed to 200 microns Gross energy (kWh/ton of feed) needed to reduce very large feed to such a size that 80% of the product passes through a 100 micron screen ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Tube mill compared to ball mill Uses smaller balls Is long in comparison with its diameter All of these Produces finer products Uses smaller balls Is long in comparison with its diameter All of these Produces finer products ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations As particle size is reduced Capacity and effectiveness of the screen is increased Screening becomes progressively easier Screening becomes progressively more difficult None of these Capacity and effectiveness of the screen is increased Screening becomes progressively easier Screening becomes progressively more difficult None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ balls capable of grinding the feed in a ball mill gives the maximum efficiency. Minimum size Elliptical Maximum size Cast iron Minimum size Elliptical Maximum size Cast iron ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Diatomaceous earth is a/an Filter aid Filter medium Explosive Catalyst Filter aid Filter medium Explosive Catalyst ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Grinding characteristic of a material is given by its Abrasion index Shatter index HGI Angle of repose Abrasion index Shatter index HGI Angle of repose ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS