Materials and Construction Copper is dissolved from its ore by H₂SO₄ in a percolation tank made of Stainless steel Reinforced concrete lined with lead High silicon iron (14% Si) Wood Stainless steel Reinforced concrete lined with lead High silicon iron (14% Si) Wood ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Atmospheric corrosion of metals result from their Slow dehydration Fast oxidation Slow oxidation Fast hydration Slow dehydration Fast oxidation Slow oxidation Fast hydration ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction German silver is an alloy of copper, nickel and Zinc Tin Lead Silver Zinc Tin Lead Silver ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following pairs of elements may form an alloy? Iron & mercury Iron & carbon Platinum & mercury None of these Iron & mercury Iron & carbon Platinum & mercury None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Carbon supply in pack carburising process is in the form of Charcoal Calcium carbide Hydrocarbon oil Graphite Charcoal Calcium carbide Hydrocarbon oil Graphite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Tin vessels are corroded by None of these Anhydrous ammonia Aromatic solvents Synthetic detergent solution None of these Anhydrous ammonia Aromatic solvents Synthetic detergent solution ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS