Mechanical Operations General mechanism of size reduction in intermediate and fine grinder is by Cutting action Impact and attrition Compression Compression and tearing Cutting action Impact and attrition Compression Compression and tearing ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Use of grinding aids results in the Finer products Both A & B Enhanced production rate Neither A nor B Finer products Both A & B Enhanced production rate Neither A nor B 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 . δρL (2R + δ) ½w² . δ² . ρL ½w² . R . ρL(R + 2δ) ½w² . R² . ρL ½w² . δρL (2R + δ) ½w² . δ² . ρL ½w² . R . ρL(R + 2δ) ½w² . R² . ρL ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations In bag filters, filter fabrics are never made of Nylon fibres Cotton fibres Metallic wire woven mesh Polyester fibres Nylon fibres Cotton fibres Metallic wire woven mesh Polyester fibres ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations At low Reynold's number, the power (P) required for agitating a fluid in a stirred tank becomes independent of inertial forces. In this limit, indicate which of the following relations is satisfied: Po = ρ/ρN3 D5 : Power number Re = ρ N D2/μ: Reynold's number N is the impeller rotational speed, and D is the impeller diameter. Po ∝ Re0.0 Po ∝ Re-1.0 Po ∝ Re0.5 Po ∝ Re1.0 Po ∝ Re0.0 Po ∝ Re-1.0 Po ∝ Re0.5 Po ∝ Re1.0 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations There is practically no alternative/competitor to __________ in the beneficiation treatment of sulphide ores. Jigging Tabling Classification Froth floatation Jigging Tabling Classification Froth floatation ANSWER DOWNLOAD EXAMIANS APP
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