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 v Acetic acid None of these Dilute HC₁ v Acetic acid None of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Coke oven regenerators are made of __________ bricks. High electrical conductivity Silica Fire clay Low thermal conductivity High electrical conductivity Silica Fire clay Low thermal conductivity ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Addition of lead, sulphur and phosphorus to low carbon steel helps in improving its Corrosion resistance Tensile strength Machinability Compressive strength Corrosion resistance Tensile strength Machinability Compressive strength ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines? Chromium steel Silicon steel None of these Molybdenum steel Chromium steel Silicon steel None of these Molybdenum steel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Thermosetting resins are those polymers, which None of these Do not take on a permanent set Allow slip to occur between molecules Do not increase in plasticity with rise in temperature None of these Do not take on a permanent set Allow slip to occur between molecules Do not increase in plasticity with rise in temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Sulphuric acid pickling tanks are lined with Aluminium Nickel Glass Rubber Aluminium Nickel Glass Rubber ANSWER DOWNLOAD EXAMIANS APP
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