Materials and Construction H₂SO₄ (< 50% concentration) is corrosive to Aluminium, mild steel, stainless steel, concrete & tin Glass, graphite, porcelain & stoneware Copper, cast iron & high silicon iron (14% Si) Rubber (butyl and hard), silicone rubber & teflon Aluminium, mild steel, stainless steel, concrete & tin Glass, graphite, porcelain & stoneware Copper, cast iron & high silicon iron (14% Si) Rubber (butyl and hard), silicone rubber & teflon ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following has the poorest wel-dability? Wrought iron Low carbon steel High-carbon steel Mild steel Wrought iron Low carbon steel High-carbon steel Mild steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction 18/8 stainless steel means, that it contains 18% nickel and 8% chromium 18% chromium and 8% nickel 18% molybdenum and 8% chromium 18% chromium and 8% molybdenum 18% nickel and 8% chromium 18% chromium and 8% nickel 18% molybdenum and 8% chromium 18% chromium and 8% molybdenum ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Graphite is corroded by Sulphuric acid (10%) Hydrochloric acid Sea water None of these Sulphuric acid (10%) Hydrochloric acid Sea water None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction In the Contact process of sulphuric acid manufacture, 98% acid cooler is made of Stainless steel Cast iron Lead lined steel Rubber lined steel Stainless steel Cast iron Lead lined steel Rubber lined steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which metal is protected by the layer of its own oxide? Iron Silver Aluminium Calcium Iron Silver Aluminium Calcium ANSWER DOWNLOAD EXAMIANS APP
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