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Metallurgical Engineering · all questions

Mineral Dressing in Metallurgy
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Which of the following size reduction equipment's can accept feed size > 25 cms?

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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 . . . . . . . .
Mineral Dressing in Metallurgy mcq question image

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In froth floatation, collector refers to a reagent which primarily,

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Pick out the wrong statement.

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What are the oxide ore of iron

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Apron conveyors are used for the

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A 200 mesh screen made of steel wire having a diameter of 0.053 mm has an aperture size (in μm)

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The following is a typical anionic collector used in floatation.

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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.

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A typical collector used in sulphide mineral floatation is

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Which of the following is softest material

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