Mechanical Operations For a turbine agitated and baffled tank, operating at low Reynold's number (based on impeller diameter), the power number (Np) varies with NRe as Np ∝ √NRe Np ∝ 1/NRe Np → constant Np ∝ NRe Np ∝ √NRe Np ∝ 1/NRe Np → constant Np ∝ NRe ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The sphericity of a cylinder of 1 mm diameter and length 3 mm is 0.5 0.6 0.78 0.9 0.5 0.6 0.78 0.9 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Sizing of very fine particles of the order of 5 to 10 microns is done by elutriation, which is a __________ operation. Flocculation Clarification Classification Sedimentation Flocculation Clarification Classification Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The unit of filter medium resistance is Cm⁻¹ Gm⁻¹ Cm/gm⁻¹ Gm/cm⁻¹ Cm⁻¹ Gm⁻¹ Cm/gm⁻¹ Gm/cm⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The main size reduction operation in ultrafine grinders is Impact Compression Attrition Cutting Impact Compression Attrition Cutting ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Reduction ratio of crushers is the Ratio of feed opening to discharge opening None of these Ratio of discharge opening to feed opening Determining factor for minimum dia of the feed and the product Ratio of feed opening to discharge opening None of these Ratio of discharge opening to feed opening Determining factor for minimum dia of the feed and the product ANSWER DOWNLOAD EXAMIANS APP
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