Mechanical Operations The unit of filter medium resistance is Gm/cm⁻¹ Cm/gm⁻¹ Gm⁻¹ Cm⁻¹ Gm/cm⁻¹ Cm/gm⁻¹ Gm⁻¹ Cm⁻¹ 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 What is the selectivity index, if the grade of tailings & concentrate is the same? ∞ 0.5 1 ∞ 0.5 1 ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Gravity stamp mill is meant for the __________ crushing. Fine Primary Intermediate Ultrafine Fine Primary Intermediate Ultrafine ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Where the density difference of the two liquid phase to be separated is very small (as in milk cream separator), the most suitable separator is a Sharpies supercentrifuge Batch basket centrifuge Disc bowl centrifuge Sparkler filter Sharpies supercentrifuge Batch basket centrifuge Disc bowl centrifuge Sparkler filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a pressure filter? Rotary drum filter Leaf filter (Moore filter) Sand filter Plate and flame filter Rotary drum filter Leaf filter (Moore filter) Sand filter Plate and flame filter ANSWER DOWNLOAD EXAMIANS APP
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