Materials and Construction Wrought iron is Malleable & ductile; and hence is used for chain links, hooks & couplings High carbon iron An alloy of iron, chromium & carbon Highly resistance to acid corrosion Malleable & ductile; and hence is used for chain links, hooks & couplings High carbon iron An alloy of iron, chromium & carbon Highly resistance to acid corrosion ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cast iron has Very high tensile strenth Elastic limit close to ultimate breaking strength High ductility High malleability Very high tensile strenth Elastic limit close to ultimate breaking strength High ductility High malleability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ can replace tungsten in high speed steel, Chromium Molybdenum Cobalt Vanadium Chromium Molybdenum Cobalt Vanadium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Gunmetal and bronze are not corroded by the action of Hydrochloric acid (10%) Synthetic detergent solution Wet chlorine Nitric acid (< 25%) Hydrochloric acid (10%) Synthetic detergent solution Wet chlorine Nitric acid (< 25%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Alpha iron is stable __________ °C. Above 1403 Upto 910 Above 1800 Between 910 & 1403 Above 1403 Upto 910 Above 1800 Between 910 & 1403 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which one occupies the lowermost position in the electromotive series of metals? Zinc Aluminium Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) Zinc Aluminium Noble metals (Ag, Pt, Au) Alkali metals (K, Na, Li) ANSWER DOWNLOAD EXAMIANS APP
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