Mechanical Operations The specific surface of spherical particles is given by (where D and ρ are diameter and density of particle). 2/D.p 4/D.p 6/D.p 12/D.p 2/D.p 4/D.p 6/D.p 12/D.p ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The ratio of the area of openings in one screen (Taylor series) to that of the openings in the next smaller screen is 1.5 ?2 1 None of these 1.5 ?2 1 None of these ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Agglomeration of individual particles into clusters (flocs) is called flocculation. To prevent flocculation, the most commonly used dispersing agents are Carbonates Bi-carbonates Silicates & phosphates Sulphates Carbonates Bi-carbonates Silicates & phosphates Sulphates 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. Fine Secondary Primary Ultrafine Fine Secondary Primary Ultrafine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtration operation carried out by continuous increase of the inlet pressure of slurry, is called the __________ filtration. Constant rate Varying pressure Varying rate Constant pressure Constant rate Varying pressure Varying rate Constant pressure ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations __________ is used for producing a thick suspension from a thin slurry. Cartridge filter Pressure filter thickener Plate and frame filter press Rotary drum vacuum filter Cartridge filter Pressure filter thickener Plate and frame filter press Rotary drum vacuum filter ANSWER DOWNLOAD EXAMIANS APP
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