Materials and Construction Lead pipes are not safe for carraying drinking water, because water, containing dissolved oxygen attacks lead thereby forming poisonous Pb(OH)₂. Lead pipes are readily corroded by Dilute HC₁ None of these v Acetic acid Dilute HC₁ None of these v Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Thermosetting polymers are None of these Extruded Injection moulded Cast molded None of these Extruded Injection moulded Cast molded ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Corrosion involves exchange of electrons in __________ corrosion. Electrochemical Chemical Both A & B Neither A nor B Electrochemical Chemical Both A & B Neither A nor B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Babbit metal used for making bearings should have Low co-efficient of friction between journal and bearing High-co-efficient of friction between journal and bearing Ability to retain lubricant on its surface Both B & C Low co-efficient of friction between journal and bearing High-co-efficient of friction between journal and bearing Ability to retain lubricant on its surface Both B & C ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Copper has very low Ductility Tensile strength Thermal & electrical conductivity Malleability Ductility Tensile strength Thermal & electrical conductivity Malleability ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is produced by addition polymerisation? Polybutadiene Urea-formaldehyde Dacron Phenol formaldehyde Polybutadiene Urea-formaldehyde Dacron Phenol formaldehyde ANSWER DOWNLOAD EXAMIANS APP
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