Mechanical Operations Cumulative analysis for determining surface is more precise than differential analysis, because of the Fact that screening is more effective Assumption that all particles in a single fraction are equal in size None of these Assumption that all particles in a single fraction are equal in size, is not needed Fact that screening is more effective Assumption that all particles in a single fraction are equal in size None of these Assumption that all particles in a single fraction are equal in size, is not needed ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ mill is not used for grinding wheat into flour and for milling of cereals & other vegetable products. Buhrstone Attrition Roller Pebble Buhrstone Attrition Roller Pebble ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations According to Bond crushing law, the work required to form particle of size 'D' from very large feed is (where (S/V)p and (S/V)f are surface to volume ratio of the product and feed respectively). √(S/V)p (S/V)p (S/V)²p (S/V)f √(S/V)p (S/V)p (S/V)²p (S/V)f ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is the most suitable for compounding rubber and plastic solids. Pug mill Banbery mixer Charge can mixer Pan mixer Pug mill Banbery mixer Charge can mixer Pan mixer ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations What is the selectivity index, if the grade of tailings & concentrate is the same? 1 0.5 ∞ 1 0.5 ∞ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Temperature of the product during ultrafine grinding Decreases May increase or decrease ; depends on the material being ground Remains constant Increases Decreases May increase or decrease ; depends on the material being ground Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
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