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
Materials and Construction Carbon supply in pack carburising process is in the form of Hydrocarbon oil Charcoal Calcium carbide Graphite Hydrocarbon oil Charcoal Calcium carbide Graphite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A material is called 'ductile', if it can be Drawn into wires Hammered to a thin sheet Made lustrous by heating it Fractured without deformation Drawn into wires Hammered to a thin sheet Made lustrous by heating it Fractured without deformation 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 Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysterisis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? Induction motors Armature of small motors/generators High frequency transformers Generators and small motors Induction motors Armature of small motors/generators High frequency transformers Generators and small motors ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Among the tin containing alloys, __________ consumes the maximum amount of tin. Solder White metal Bronzes Pewter matal Solder White metal Bronzes Pewter matal ANSWER DOWNLOAD EXAMIANS APP
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