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 In classification, particles are said to be equal settling, if they have the same terminal velocities in the Same fluid Different fluids Both B and C Same field of force Same fluid Different fluids Both B and C Same field of force ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Which of the following is a pressure filter? Sand filter Plate and flame filter Rotary drum filter Leaf filter (Moore filter) Sand filter Plate and flame filter Rotary drum filter Leaf filter (Moore filter) ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The filtrate flow rate in constant pressure filtration Remains constant throughout May increase or decrease ; depends on the pressure Continuously decreases Continuously increases Remains constant throughout May increase or decrease ; depends on the pressure Continuously decreases Continuously increases ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The cake resistance increases steadily with the time of filtration in a plate and frame filter employing constant __________ filtration. Rate Both A & B Pressure Neither A nor B Rate Both A & B Pressure Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations A widely used size reduction equipment for __________ is Bradford breaker. Wheat Iron core Talc Coal Wheat Iron core Talc Coal ANSWER DOWNLOAD EXAMIANS APP
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