Materials and Construction H₂SO₄ (< 50% concentration) is corrosive to Rubber (butyl and hard), silicone rubber & teflon Aluminium, mild steel, stainless steel, concrete & tin Copper, cast iron & high silicon iron (14% Si) Glass, graphite, porcelain & stoneware Rubber (butyl and hard), silicone rubber & teflon Aluminium, mild steel, stainless steel, concrete & tin Copper, cast iron & high silicon iron (14% Si) Glass, graphite, porcelain & stoneware ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Maximum carbon content in any variety of steel can be upto 1.3%. Steel containing 0.4% Carbon is not used for making Bolts Chiesels Studs Nuts Bolts Chiesels Studs Nuts ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is not an alloy of copper and tin? Admiralty gun metal Gun metal Monel metal Bell metal Admiralty gun metal Gun metal Monel metal Bell metal ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Plasticisers are added to polymers to improve their Tensile strength Softness & flexibility Acid resistance Alkali resistance Tensile strength Softness & flexibility Acid resistance Alkali resistance ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Telfon (PTFE) is corroded by Hydrochloric acid (10%) Sulphuric acid Hydrochloric acid (95%) None of these Hydrochloric acid (10%) Sulphuric acid Hydrochloric acid (95%) None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following has the least carbon percentage? Wrought iron White cast iron Mild steel Low carbon steel Wrought iron White cast iron Mild steel Low carbon steel ANSWER DOWNLOAD EXAMIANS APP
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