The figure below shows a schematic of a water droplet placed on the surfaces of two mineral P and Q.
Given this information, pick the correct statement from the following:
A. Mineral P ascends with air bubbles preferentially over mineral Q
B. Mineral Q ascends with air bubbles preferentially over mineral P
C. Both minerals P and Q ascend with the air bubbles without preference
D. Both minerals P and Q sink to the bottom
Answer: Option A
A. classification
B. froth floatation
C. Thickening
D. none of these
During filtration operation, the filtrate encounters the resistance of the
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
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
The capacity of a pneumatic conveying system depends upon the
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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