Materials and Construction H₂SO₄ (< 50% concentration) is corrosive to Aluminium, mild steel, stainless steel, concrete & tin Copper, cast iron & high silicon iron (14% Si) Rubber (butyl and hard), silicone rubber & teflon Glass, graphite, porcelain & stoneware Aluminium, mild steel, stainless steel, concrete & tin Copper, cast iron & high silicon iron (14% Si) Rubber (butyl and hard), silicone rubber & teflon Glass, graphite, porcelain & stoneware ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines? Silicon steel Chromium steel Molybdenum steel None of these Silicon steel Chromium steel Molybdenum steel None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following will have the highest melting point? High carbon steel Mild steel Wrought iron Pig iron High carbon steel Mild steel Wrought iron Pig iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Aqueous nitric acid is stored in Steel drum Cast iron vessel lined with acid-proof masonry brick Cast iron vessel Stainless steel vessel Steel drum Cast iron vessel lined with acid-proof masonry brick Cast iron vessel Stainless steel vessel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Soap kettle used in the production of laundry soap is made of Concrete Steel with top section nickel clad or stainless steel Nickel Cast iron Concrete Steel with top section nickel clad or stainless steel Nickel Cast iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The presence of impurities in iron Makes it malleable Does not affect its melting point Increases its melting point Decreases its melting point Makes it malleable Does not affect its melting point Increases its melting point Decreases its melting point ANSWER DOWNLOAD EXAMIANS APP
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