41. Which of the following size reduction equipment's can accept feed size > 25 cms?
42. The figure below shows the cumulative size distribution of particles of a crushed mineral. 10 kg of this material is first passed through a sieve of size 400 micron and then through a sieve of size 300 micron. The weight of mineral (in kg ) that is retained on the 300 micron sieve is . . . . . . . .
43. In froth floatation, collector refers to a reagent which primarily,
44. Pick out the wrong statement.
45. What are the oxide ore of iron
46. Apron conveyors are used for the
47. A 200 mesh screen made of steel wire having a diameter of 0.053 mm has an aperture size (in μm)
48. The following is a typical anionic collector used in floatation.
49. Identify the correct statements:
P. A reagent could be a collector for one system and a frother for another.
Q. Usage of a frother makes the bubble stable.
R. Usage of a frother makes the mineral surface hydrophobic
S. Some mineral floatation processes will not require any collector.
P. A reagent could be a collector for one system and a frother for another.
Q. Usage of a frother makes the bubble stable.
R. Usage of a frother makes the mineral surface hydrophobic
S. Some mineral floatation processes will not require any collector.