With increase in temperature, the surface tension of water_______________________?

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Which of the following is not used as a bearing material ?

A. Copper-lead alloys B. Babbitts C. Bronzes D. Cermets...

In “Imperial Smelting Process” for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following _______________________?

A. Jet of water at high pressure B. Blast of air C. Mixture of water and air D. Rain of molten lead...

Which of the, following is not associated with the functioning of a petrol engine ?

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Lead is poured into the joint between two _______________ pipes ?

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Increasing sulphur content in pig iron tends to make it ________________?

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