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 Dust laden air can be purified using a Cyclone separator Gravity settler Tubular centrifuge Bag filter Cyclone separator Gravity settler Tubular centrifuge Bag filter ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations Filter medium resistance is that offered by the Filter cloth and the embedded particle collectively Filter cloth None of these Embedded particles in the septum Filter cloth and the embedded particle collectively Filter cloth None of these Embedded particles in the septum ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The critical speed of a trommel (N) is related to its dia (D) as N ∝ √D N ∝ 1/D N ∝ D N ∝ 1/√D N ∝ √D N ∝ 1/D N ∝ D N ∝ 1/√D ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The power number for a stirred tank becomes constant at high Reynolds number. In this limit, the variation of power input with impeller rotational speed (N) is proportional to N³ N° N² N¹ N³ N° N² N¹ ANSWER DOWNLOAD EXAMIANS APP
Mechanical Operations The inlet pressure in a constant rate filtration Increases continuously Decreases gradually None of these Remains constant Increases continuously Decreases gradually None of these Remains constant ANSWER DOWNLOAD EXAMIANS APP
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