Materials and Construction The presence of impurities in iron Does not affect its melting point Makes it malleable Increases its melting point Decreases its melting point Does not affect its melting point Makes it malleable Increases its melting point Decreases its melting point ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Work hardening of a material Decreases its ductility Decreases its tensile strength Does not affect its ductility Increases its ductility Decreases its ductility Decreases its tensile strength Does not affect its ductility Increases its ductility ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The melleability of a material is the property by virtue of which it can be rolled or hammered into thin sheets. Which of the following materials has the miximum malleability? Lead Wrought iron Copper Aluminium Lead Wrought iron Copper Aluminium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A metallic alloy in general as compared to their pure metal components is Having higher melting point Having lower electrical conductivity Having lower hardness, reactivity and fusibility More corrosion resistant Having higher melting point Having lower electrical conductivity Having lower hardness, reactivity and fusibility More corrosion resistant ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction High speed cutting tool steels contain about __________ percent of tungsten. 30-35 43990 50-55 18-20 30-35 43990 50-55 18-20 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal used for making bearings should have High-co-efficient of friction between journal and bearing Both B & C Low co-efficient of friction between journal and bearing Ability to retain lubricant on its surface High-co-efficient of friction between journal and bearing Both B & C Low co-efficient of friction between journal and bearing Ability to retain lubricant on its surface ANSWER DOWNLOAD EXAMIANS APP
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