Materials and Construction Which of the following is produced by addition polymerisation? Phenol formaldehyde Urea-formaldehyde Polybutadiene Dacron Phenol formaldehyde Urea-formaldehyde Polybutadiene Dacron ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chlorination of benzene is done to produce benzene hexachloride (a pesticide) in a photochemical reactor lined with Fireclay bricks Lead or glass PVC Karbate Fireclay bricks Lead or glass PVC Karbate 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 v None of these Dilute HC₁ Acetic acid v None of these Dilute HC₁ Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Maximum consumption of copper is in Electrical industry Small scale industries Utensil manufacture Industrial equipment manufacture Electrical industry Small scale industries Utensil manufacture Industrial equipment manufacture ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Gunmetal and bronze are not corroded by the action of Nitric acid (< 25%) Synthetic detergent solution Wet chlorine Hydrochloric acid (10%) Nitric acid (< 25%) Synthetic detergent solution Wet chlorine Hydrochloric acid (10%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ iron is produced, when molten pig iron is allowed to cool gradually. Grey cast White cast None of these Wrought Grey cast White cast None of these Wrought ANSWER DOWNLOAD EXAMIANS APP
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