Materials and Construction Lead pipes are not safe for carrying drinking water because water containing dissolved oxygen attacks lead thereby forming poisonous Pb (OH)2. None of these Acetic acid Concentrated H₂SO₄ Dilute HCI None of these Acetic acid Concentrated H₂SO₄ Dilute HCI ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The purpose of nitriding the steel is to Soften its surface None of these Improve its reliability Harden its surface Soften its surface None of these Improve its reliability Harden its surface ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Carbon is present in the combined form (carbide) in case of Ferroalloys Pig iron Steel All of these Ferroalloys Pig iron Steel All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A magnetic material becomes __________ above the Curie temperature. Ferromagnetic Paramagnetic None of these Diamagnetic Ferromagnetic Paramagnetic None of these Diamagnetic ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of 0.3 to 0.5% arsenic in copper increases its Ductility Malleability Tenacity & hardness Electrical conductivity Ductility Malleability Tenacity & hardness Electrical conductivity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The specific gravity of coal depends mainly on its __________ content. Volatile matter Ash Moisture Carbon Volatile matter Ash Moisture Carbon ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS