Materials and Construction Glass is corroded by Phosphoric acid Fluorine (dry or wet) None of these Sulphuric acid Phosphoric acid Fluorine (dry or wet) None of these Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Bog iron used for the adsorption of H?S from coke oven gas is 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 An intimate mixture of saw dust and iron dust (i.e. moist ferric hydroxide) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction In order to be called steel, an alloy should have iron percentage greater than 50 70 80 90 50 70 80 90 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Ceramic recuperators are generally made of Silicon carbide Calcium carbide Fireclay bricks High alumina bricks Silicon carbide Calcium carbide Fireclay bricks High alumina bricks ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The main purpose of galvanising iron sheets is to Harden the surface Prevent the action of water Prevent the action of oxygen Increase its glossiness and lustre Harden the surface Prevent the action of water Prevent the action of oxygen Increase its glossiness and lustre ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Cast iron is a __________ material. Malleable Brittle Ductile Tough Malleable Brittle Ductile Tough ANSWER DOWNLOAD EXAMIANS APP
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