Mechanical Operations Energy consumed for crushing one ton of material ranges from __________ kWh. 0.01 to 0.1 0.5 to 1.5 2 to 3.5 4 to 5 0.01 to 0.1 0.5 to 1.5 2 to 3.5 4 to 5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Pulverised coal passing through 200 mesh screen has a diameter of 0.074 mm (74 micron). The same passing through 50 mesh screen will have a dia of __________ mm. 0.007 50 0.3 0.014 0.007 50 0.3 0.014 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of ice and gypsum can be accomplished suitably by a __________ crusher. Blake jaw Toothed roll None of these Gyratory Blake jaw Toothed roll None of these Gyratory ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations 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. 1 1.34 4.34 0.5 1 1.34 4.34 0.5 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Complicates handling of the product Gives less wear on chamber walls Requires more energy Increases capacity Complicates handling of the product Gives less wear on chamber walls Requires more energy Increases capacity ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Size reduction of fibrous materials like wood, asbestos, mica etc. is done by a disintegrator exemplified by the Blake jaw crusher Cage mill Stamp mill Bradford's breaker Blake jaw crusher Cage mill Stamp mill Bradford's breaker ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS