Mechanical Operations Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the Powdered food & granular materials Heavy tonnages of rocks or gravel Light metal powder down upto 4 meshsize Dry chemicals Powdered food & granular materials Heavy tonnages of rocks or gravel Light metal powder down upto 4 meshsize Dry chemicals ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Rittinger's crushing law states that Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product Work required to form a particle of a particular size is proportional to the square root of the surface to volume ratio of the product Work required in crushing is proportional to the new surface created Work required to form a particle of any size is proportional to the square of the surface to volume ratio of the product For a given machine and feed, crushing efficiency is dependent on the size of the feed & product ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not a cutting machine? Slitters Knife cutters Tube mills Dicers Slitters Knife cutters Tube mills Dicers ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Percentage of drum submerged in the slurry in case of rotary drum filter is 3 30 85 25 3 30 85 25 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is defined as the geometric mean of the relative rejections and the relative recoveries of two minerals. Selectivity index Concentration ratio None of these Separation efficiency Selectivity index Concentration ratio None of these Separation efficiency ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 300 to 1500 mm while the product size is 100 to 300 mm. This is a case of the __________ crushing. Ultrafine Primary Fine Secondary Ultrafine Primary Fine Secondary ANSWER DOWNLOAD EXAMIANS APP
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