Mechanical Operations Filtration should be stopped in a filter press, if the Cake becomes very dense Liquor stops flowing out to the discharge Both A & B Filtration pressure rises suddenly Cake becomes very dense Liquor stops flowing out to the discharge Both A & B Filtration pressure rises suddenly ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Temperature of the product during ultrafine grinding Decreases Remains constant May increase or decrease ; depends on the material being ground Increases Decreases Remains constant May increase or decrease ; depends on the material being ground Increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Separation of particles of various sizes, shapes and densities by allowing them to settle in a fluid is called Thickening Froth floatation Clarification Classification Thickening Froth floatation Clarification Classification 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 ?2 1.5 None of these 1 ?2 1.5 None of these 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In case of a hammer crusher, the Minimum product size is 3 mm Maximum feed size may be 50 mm Rotor shaft carrying hammers can be vertical or horizontal Feed may be highly abrasive (Moh's scale >5) Minimum product size is 3 mm Maximum feed size may be 50 mm Rotor shaft carrying hammers can be vertical or horizontal Feed may be highly abrasive (Moh's scale >5) 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 Silicates & phosphates Carbonates Bi-carbonates Sulphates Silicates & phosphates Carbonates Bi-carbonates Sulphates ANSWER DOWNLOAD EXAMIANS APP
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