Materials and Construction Presence of high amount of silicon in cast iron Increases the contraction of the metal Increases the formation of graphite Reduces its fluidity Suppresses the decomposition of Fe₃ C Increases the contraction of the metal Increases the formation of graphite Reduces its fluidity Suppresses the decomposition of Fe₃ C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The melleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the miximum malleability? Copper Lead Aluminium Wrought iron Copper Lead Aluminium Wrought iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cast iron is having very high Ductility Tensile strength All of these Proximity between its elastic limit and ultimate breaking strength Ductility Tensile strength All of these Proximity between its elastic limit and ultimate breaking strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Brass container is suitable for storing Phosphoric acid (95%) Aqueous ammonia H₂SO₄(95%) Beer Phosphoric acid (95%) Aqueous ammonia H₂SO₄(95%) Beer ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cold work tool steel should have Poor hardenability High toughness High wear resistance All of these Poor hardenability High toughness High wear resistance All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Gunmetal and bronze are not corroded by the action of Synthetic detergent solution Hydrochloric acid (10%) Nitric acid (< 25%) Wet chlorine Synthetic detergent solution Hydrochloric acid (10%) Nitric acid (< 25%) Wet chlorine ANSWER DOWNLOAD EXAMIANS APP
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