Chemical Engineering :: Chemical Engineering Basics
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Plants produce carbohydrates from the CO2 present in the atmosphere by
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Identify the correct statement with reference to the extractive metallurgy of aluminium.
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A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to
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Which of the following is not used as an alloying element in steel used for making permanent magnetic material ?
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Pick out the wrong statement.
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The fatigue resistance of a material is improved by the following technique.
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Increase in temperature, in general results in the
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Which of the following can be manufactured using powder metallurgy techniques?
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Removal of non-condensables from steam or other vapour is termed as the __________ process.
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Cold heading or upsetting is categorised as the __________ process.
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A.
The electrolyte consists of molten Na3AlF6 with approximately 1 to 8% Al2O3.
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B.
Approximately 80% of the aluminium deposited on the cathode comes from cryolite.
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C.
Sodium is deposited along with aluminium, but is immediately vaporised.
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D.
Anode effect sets in when the cryolite concentration goes below 40%.
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