Materials and Construction Copper is dissolved from its ore by H₂SO₄ in a percolation tank made of Reinforced concrete lined with lead Stainless steel Wood High silicon iron (14% Si) Reinforced concrete lined with lead Stainless steel Wood High silicon iron (14% Si) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Zinc is highly __________ at room temperature. Ductile Malleable Brittle Resistant to atmospheric corrosion Ductile Malleable Brittle Resistant to atmospheric corrosion ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Galvanising (i.e., zinc coating) of steel sheets is done to Neither A nor B Both A & B Prevent its rusting by contact with corrosive atmosphere Protect the base metal by cathodic protection Neither A nor B Both A & B Prevent its rusting by contact with corrosive atmosphere Protect the base metal by cathodic protection ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Amount of energy that a material can absorb before its fracture is a measure of its Resilience Toughness Ductility Malleability Resilience Toughness Ductility Malleability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Carbon content in plain carbon steel is __________ percent. 0.1 to 0.15 0.35 to 0.45 0.65 to 0.80 0.85 to 1.2 0.1 to 0.15 0.35 to 0.45 0.65 to 0.80 0.85 to 1.2 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Materials having __________ lattice structure are usually most ductile. c.c. H.c.p. Cubic F.c.c. c.c. H.c.p. Cubic F.c.c. ANSWER DOWNLOAD EXAMIANS APP
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