Materials and Construction Corrosion involves exchange of electrons in __________ corrosion. Both A & B Chemical Neither A nor B Electrochemical Both A & B Chemical Neither A nor B Electrochemical ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction As the impurities are oxidised, the melting point of iron Remains unchanged May increase or decrease ; unpredictable Increases Decreases Remains unchanged May increase or decrease ; unpredictable Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of nitrogen in steel Makes it brittle Increases its hardness Increases its strength Is desirable Makes it brittle Increases its hardness Increases its strength Is desirable ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Lead lined equipments & vessels are suitable for handling Sulphuric acid upto 60°C All of these Nitric acid Hydrochloric acid (10%) Sulphuric acid upto 60°C All of these Nitric acid Hydrochloric acid (10%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Generally __________ are subjected to galvanising (i.e., zinc coating). Low carbon steels Stainless steel Non-ferrous metals Non-metals Low carbon steels Stainless steel Non-ferrous metals Non-metals ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction For storing water and acid free benzol, use a __________ vessel. Steel Karbate None of these Stainless steel Steel Karbate None of these Stainless steel ANSWER DOWNLOAD EXAMIANS APP
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