Materials and Construction Wrought iron is High carbon iron Malleable & ductile; and hence is used for chain links, hooks & couplings Highly resistance to acid corrosion An alloy of iron, chromium & carbon High carbon iron Malleable & ductile; and hence is used for chain links, hooks & couplings Highly resistance to acid corrosion An alloy of iron, chromium & carbon ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Very high sulphur in pig iron makes Its casting unsound Its brittle and malleable Its hard and machinable All of these Its casting unsound Its brittle and malleable Its hard and machinable All of these ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The presence of impurities in iron Makes it malleable Increases its melting point Decreases its melting point Does not affect its melting point Makes it malleable Increases its melting point Decreases its melting point Does not affect its melting point ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction High speed cutting tool steels contain about __________ percent of tungsten. 30-35 18-20 50-55 43990 30-35 18-20 50-55 43990 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction To improve the machinability of steel by its softening, it is subjected to Heating Cold working Annealing Shot blasting Heating Cold working Annealing Shot blasting ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Nickel as a material of construction Has a body centred cubic (bcc) crystal lattice structure Is used as an alloying element for both ferrous & non-ferrous alloys Is paramagnetic below 415° C (its Curie temperature) Dimagnetic Has a body centred cubic (bcc) crystal lattice structure Is used as an alloying element for both ferrous & non-ferrous alloys Is paramagnetic below 415° C (its Curie temperature) Dimagnetic ANSWER DOWNLOAD EXAMIANS APP
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