Q. Plants produce carbohydrates from the CO₂ present in the atmosphere by

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Q. Identify the correct statement with reference to the extractive metallurgy of aluminium.

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Q. A particle is settling in a liquid under Stokesian conditions. The free falling velocity of the particle is proportional to

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Q. Which of the following is not used as an alloying element in steel used for making permanent magnetic material ?

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Q. Pick out the wrong statement.

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Q. When a tuning fork vibrates, the waves produced in the fork are

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Q. Fatigue limit of a material should not be increased by

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Q. For a fixed cross-sectional area, the most economical channel section has maximum

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Q. Pellets are not as popular a burden as sinter in the iron blast furnace, because of their

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Q. A form of stress corrosion failure termed as 'season cracking' is generally observed in

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Q. The fatigue resistance of a material is improved by the following technique.

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Q. Increase in temperature, in general results in the

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Q. Which of the following can be manufactured using powder metallurgy techniques?

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Q. Removal of non-condensables from steam or other vapour is termed as the __________ process.

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Q. Cold heading or upsetting is categorised as the __________ process.

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Q. A material subjected __________ must have high resilience.

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Q. Triple point of water is

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Q. Solute atoms which cause yield point phenomenon in mild steel are/is

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Q. __________ pipe is the most suitable for carrying sanitary drainage.

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Q. Liquor poisoning generally occurs due to the presence of __________ in it.

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