Mechanical Operations Which of the following is used for primary crushing of very hard lumpy materials? Ball mill Gyratory crusher Tube mill Toothed roll crusher Ball mill Gyratory crusher Tube mill Toothed roll crusher ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The energy consumed by a ball mill depends on All of these Its speed Its ball load The density of the material being ground All of these Its speed Its ball load The density of the material being ground ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The term 'angle of nip' is concerned with the operation of the __________ crushers. None of these Gyratory Jaw Roll None of these Gyratory Jaw Roll ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The most suitable filter for the removal of very small amount of precipitate from very large volumes of water is the __________ filter. Sand Vacuum Plate & frame Rotary Sand Vacuum Plate & frame Rotary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sphericity of raschig ring (whose length and diameter are equal) is 2 >1 1 2 >1 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Work index is defined as the Energy needed to crush one tonne of feed to 200 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 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 needed to crush one tonne of feed to 200 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 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 ANSWER DOWNLOAD EXAMIANS APP
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