Materials and Construction Hardened steel is softened by Carburising Normalising Tempering Annealing Carburising Normalising Tempering Annealing 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
Materials and Construction Very high sulphur in pig iron makes Its hard and machinable All of these Its brittle and malleable Its casting unsound Its hard and machinable All of these Its brittle and malleable Its casting unsound ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Telfon (PTFE) is corroded by None of these Hydrochloric acid (10%) Sulphuric acid Hydrochloric acid (95%) None of these Hydrochloric acid (10%) Sulphuric acid Hydrochloric acid (95%) ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of 0.3 to 0.5% arsenic in copper increases its Electrical conductivity Ductility Malleability Tenacity & hardness Electrical conductivity Ductility Malleability Tenacity & hardness ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The main purpose of galvanising iron sheets is to Harden the surface Prevent the action of water Prevent the action of oxygen Increase its glossiness and lustre Harden the surface Prevent the action of water Prevent the action of oxygen Increase its glossiness and lustre ANSWER DOWNLOAD EXAMIANS APP
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