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Metallurgical Engineering

GATE MT Comminution techniques, size classification, flotation, gravity and other methods of mineral beneficiation; Agglomeration: sintering, pelletizing and briquetting. PYQs

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Question 54

Open question
MTNAT2 marksNeeds review
The diameter of spherical galena particles that have the same settling velocity as spherical quartz particles of diameter 25 μm (both settling in water) is _____ μm (rounded off to one decimal place).
Assume Stokes law of settling to be valid.
Given: Density of galena = 7400 kg m

, density of quartz = 2600 kg m

, density of water = 1000 kg m

.

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