Materials and Construction Presence of high amount of silicon in cast iron Suppresses the decomposition of Fe₃ C Increases the formation of graphite Increases the contraction of the metal Reduces its fluidity Suppresses the decomposition of Fe₃ C Increases the formation of graphite Increases the contraction of the metal Reduces its fluidity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction When the steel is subjected to normalising, its __________ decreases. Ductility None of these Yield point Ultimate tensile strength (UTS) Ductility None of these Yield point Ultimate tensile strength (UTS) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Gunmetal and bronze are not corroded by the action of Wet chlorine Synthetic detergent solution Hydrochloric acid (10%) Nitric acid (< 25%) Wet chlorine Synthetic detergent solution Hydrochloric acid (10%) Nitric acid (< 25%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Zinc is highly __________ at room temperature. Ductile Resistant to atmospheric corrosion Malleable Brittle Ductile Resistant to atmospheric corrosion Malleable Brittle ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is not shipped in mild steel containers? Ethyl alcohol Acetone Formic acid Ammonia Ethyl alcohol Acetone Formic acid Ammonia ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals)? Chromel Constantan Invar Alumel Chromel Constantan Invar Alumel ANSWER DOWNLOAD EXAMIANS APP
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