Materials and Construction Galvanising (i.e., zinc coating) of steel sheets is done to Protect the base metal by cathodic protection Prevent its rusting by contact with corrosive atmosphere Both A & B Neither A nor B Protect the base metal by cathodic protection Prevent its rusting by contact with corrosive atmosphere Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is produced by condensation polymerisation? Poly vinyl chloride Polystyrene Polythene Bakelite Poly vinyl chloride Polystyrene Polythene Bakelite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Carbon is present in steel wholly in the Combined form Neither A nor B Free state as graphite Both A & B Combined form Neither A nor B Free state as graphite Both A & B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following material of construction may be recommended by a chemical engineer for handling a gaseous chlorine (dry or wet) stream in a fluid flow system? Cast iron, tin and aluminium Copper, nickel and monel Mild steel and stainless steel High silicon iron, silicon rubber, Kel-F and teflon Cast iron, tin and aluminium Copper, nickel and monel Mild steel and stainless steel High silicon iron, silicon rubber, Kel-F and teflon ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Bog iron used for the adsorption of H?S from coke oven gas is An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide) Iron impregnated with resin (usually bakelite) None of these Carbon free iron An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide) Iron impregnated with resin (usually bakelite) None of these Carbon free iron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which metal is protected by the layer of its own oxide? Calcium Silver Iron Aluminium Calcium Silver Iron Aluminium ANSWER DOWNLOAD EXAMIANS APP
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