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07.03.18 Uttarakhand (UKPCS) Current Affairs

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UTTARAKHAND   Women to be trained in making LED lights   Uttarakhand Chief Minister Trivendra Singh Rawat today launched a programme for women self-help groups at Thano near here which will train them in making LED lights.   The five-day programme named LED Gram Light Training programme will train 50 women from 10 SHGS in … Read more 07.03.18 Uttarakhand (UKPCS) Current Affairs

Metallurgy concentration, roasting, smelting

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Metallurgy concentration, roasting, smelting Roasting It is a process wherein the ore is heated either alone or with some other material in excess of air below the fusion point of the ore. Usually, this method is used for sulphide ores. In roasting, definite chemical changes take place to form oxide or chloride of the metal. … Read more Metallurgy concentration, roasting, smelting