Materials and Construction The presence of impurities in iron Decreases its melting point Increases its melting point Does not affect its melting point Makes it malleable Decreases its melting point Increases its melting point Does not affect its melting point Makes it malleable ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction High speed cutting tool steels contain about __________ percent of tungsten. 50-55 18-20 30-35 43990 50-55 18-20 30-35 43990 ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction A magnetic material becomes __________ above the Curie temperature. None of these Ferromagnetic Paramagnetic Diamagnetic None of these Ferromagnetic Paramagnetic Diamagnetic ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Visco-elastic behaviour of materials which is time dependent is common in Non-crystalline organic polymer Non-crystalline solids Crystalline solid Plastics Non-crystalline organic polymer Non-crystalline solids Crystalline solid Plastics ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. Solid solution hardening Screw dislocation Strain ageing Twinning Solid solution hardening Screw dislocation Strain ageing Twinning ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Constituents of stellite are Cobalt, chromium and tungsten Nickel, cobalt and vanadium Zinc, copper and nickel Zinc, aluminium and nickel Cobalt, chromium and tungsten Nickel, cobalt and vanadium Zinc, copper and nickel Zinc, aluminium and nickel ANSWER DOWNLOAD EXAMIANS APP
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