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 Acetic acid Dilute HC₁ None of these v Acetic acid Dilute HC₁ None of these v ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Wrought iron is having very high Susceptibility to changes in its properties by heat treatment Corrosion resistance Hardness Strength Susceptibility to changes in its properties by heat treatment Corrosion resistance Hardness Strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Coke oven regenerators are made of __________ bricks. High electrical conductivity Silica Low thermal conductivity Fire clay High electrical conductivity Silica Low thermal conductivity Fire clay ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is produced by condensation polymerisation? Polythene Bakelite Polystyrene Poly vinyl chloride Polythene Bakelite Polystyrene Poly vinyl chloride ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Metal at the top of the electromotive series is Least active Most active Most noble Most stable Least active Most active Most noble Most stable ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Low carbon steels are those in which carbon percentage is around 1.5 to 2 0.4 to 0.7 0.1 to 0.35 0.8 to 1.5 1.5 to 2 0.4 to 0.7 0.1 to 0.35 0.8 to 1.5 ANSWER DOWNLOAD EXAMIANS APP
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