Mechanical Operations Reciprocal of sphericity is termed as the Shape factor Sauter diameter Surface area per unit mass Specific surface ratio Shape factor Sauter diameter Surface area per unit mass Specific surface ratio ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In a size reduction crushing operation, feed size is 100 to 300 mm. while the product size is 10 to 50 mm. This is a case of the __________ crushing. Primary Ultrafine Secondary Fine Primary Ultrafine Secondary Fine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Crushing efficiency of a machine ranges between __________ percent. 5 to 10 20 to 25 50 to 70 0.1 to 2 5 to 10 20 to 25 50 to 70 0.1 to 2 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Mass flow of granular solid (M) through a circular opening of dia, D follows M ∝ D² M ∝ D M ∝ √D M ∝ D³ M ∝ D² M ∝ D M ∝ √D M ∝ D³ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Soft & non-abrasive materials can be made into fines by Compression Attrition None of these Cutting Compression Attrition None of these Cutting ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle). 12/D.p 2/D.p 4/D.p 6/D.p 12/D.p 2/D.p 4/D.p 6/D.p ANSWER DOWNLOAD EXAMIANS APP
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