Materials and Construction Sulphuric acid is mixed with ground phosphate rock (to produce phosphoric acid) in a steel digestor lined with Acidic refractory Karbate Lead or acid-proof bricks Rubber Acidic refractory Karbate Lead or acid-proof bricks Rubber ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The process of coating steel sheets by zinc to improve its corrosion resistance is called Zincification Calorising Galvanising Tempering Zincification Calorising Galvanising Tempering ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of even very minute amount (say 0.1%) of __________ in copper, reduces its electrical conductivity very seriously. Antimony Arsenic Bismuth Both B and C Antimony Arsenic Bismuth Both B and C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chromel (Nichrome) is an alloy of Molybdenum and nickel Nickel and chromium Chromium and molybdenum Chromium and aluminium Molybdenum and nickel Nickel and chromium Chromium and molybdenum Chromium and aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which metal is protected by the layer of its own oxide? Iron Calcium Silver Aluminium Iron Calcium Silver Aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction When the steel is subjected to normalising, its __________ decreases. Ultimate tensile strength (UTS) Yield point Ductility None of these Ultimate tensile strength (UTS) Yield point Ductility None of these ANSWER DOWNLOAD EXAMIANS APP
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