Mechanical Operations Filter aid is used to Increase the porosity of the cake Increase the rate of filtration Decrease the pressure drop Act as a support base for the septum Increase the porosity of the cake Increase the rate of filtration Decrease the pressure drop Act as a support base for the septum 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 Bi-carbonates Carbonates Sulphates Silicates & phosphates Bi-carbonates Carbonates Sulphates 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. Ultrafine Fine Secondary Primary Ultrafine Fine Secondary Primary ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filtrate flow rate in case of a rotary drum vacuum filter (in which Rm < < Rc) is proportional to __________ and the cycle time (where, μ = filtrate viscosity Rm = filter medium resistance Rc = cake resistance ). 1/μ 1/√μ √μ 1/μ² 1/μ 1/√μ √μ 1/μ² ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The controlling resistance in a rotary drum vacuum filter is the __________ resistance. Filter medium Cake None of these Piping Filter medium Cake None of these Piping 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 Classification Clarification Froth floatation Thickening Classification Clarification Froth floatation ANSWER DOWNLOAD EXAMIANS APP
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