Materials and Construction Graphite is corroded by Sulphuric acid (10%) None of these Hydrochloric acid Sea water Sulphuric acid (10%) None of these Hydrochloric acid Sea water ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Silicon percentage in acid resistant cast iron is about 8 20 14 4 8 20 14 4 ANSWER DOWNLOAD EXAMIANS APP
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 None of these Dilute HC₁ v Acetic acid None of these Dilute HC₁ v ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A chemical change takes place when iron Melts None of these Is heated Rusts Melts None of these Is heated Rusts ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following crystal structures characterises the ferritic stainless steel? Face centred cubic Body centred cubic None of these Simple hexagonal Face centred cubic Body centred cubic None of these Simple hexagonal ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A steel alloy containing 36% nickel is called __________ , which has a zero co- efficient of expansion. Heat resisting steel Invar High speed steel Austenitic stainless steel Heat resisting steel Invar High speed steel Austenitic stainless steel ANSWER DOWNLOAD EXAMIANS APP
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