Mechanical Operations Wet grinding in a revolving mill __________ as compared to dry grinding. Increases capacity Requires more energy Complicates handling of the product Gives less wear on chamber walls Increases capacity Requires more energy Complicates handling of the product Gives less wear on chamber walls ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A centrifugal filtration unit operating at a rotational speed of w has inner surface of the liquid (density ρL) located at a radial distance R from the axis of rotation. The thickness of the liquid film is δ and no cake is formed. The initial pressure drop during filtration is ½w² . R . ρL(R + 2δ) ½w² . δ² . ρL ½w² . δρL (2R + δ) ½w² . R² . ρL ½w² . R . ρL(R + 2δ) ½w² . δ² . ρL ½w² . δρL (2R + δ) ½w² . R² . ρL ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is not used as a surface active agent in a flocculation operation? Lime Alumina Sodium silicate Quartz Lime Alumina Sodium silicate Quartz ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Metallic wire mesh is used as a filtering medium for the separation of dust from dust laden gas in case of a/an Hydrocyclones Bag filter Air filter Venturi scrubber Hydrocyclones Bag filter Air filter Venturi scrubber ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The inlet pressure in a constant rate filtration None of these Decreases gradually Remains constant Increases continuously None of these Decreases gradually Remains constant Increases continuously ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Screw conveyors are Suitable for sticky materials Run at very high rpm Suitable for highly abrasive materials All of these Suitable for sticky materials Run at very high rpm Suitable for highly abrasive materials All of these ANSWER DOWNLOAD EXAMIANS APP
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