Separation of particles of various sizes shapes & densities by allowing...

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Separation of particles of various sizes, shapes & densities by allowing them to settle in a fluid is called

A. classification

B. froth floatation

C. Thickening

D. none of these

Answer: Option A

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A. classification

B. froth floatation

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D. none of these

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A. filter medium

B. cake

C. channel carrying the slurry to then upstream side of the cake and filtrate away from the filter medium

D. all A, B and C

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Group 1	Group 2
P. Floatation	1. Separation on the basis of density difference
Q. Electrostatic concentration	2. Reduction in size
R. Comminution	3. Surface charge is induced in particles
S. Heavy media separation	4. Modification of surface tension

A. P-2, Q-1, R-4, S-3

B. P-1, Q-2, R-3, S-4

C. P-3, Q-4, R-1, S-2

D. P-4, Q-3, R-2, S-1

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A. bulk density of materials

B. pressure of the conveying air

C. diameter of the conveying line

D. all A, B and C

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