Engineering Materials In full annealing, the hypo eutectoid steel is heated from 30°C to 50°C above the upper critical temperature and then cooled Slowly in the furnace In still air Any one of these Suddenly in a suitable cooling medium Slowly in the furnace In still air Any one of these Suddenly in a suitable cooling medium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following property is desirable for materials used in tools and machines? Ductility Malleability Plasticity Elasticity Ductility Malleability Plasticity Elasticity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Permalloy is a Kind of stainless steel None ferrous alloy Polymer Nickel and iron alloy having high permeability Kind of stainless steel None ferrous alloy Polymer Nickel and iron alloy having high permeability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has maximum ductility? Mild steel Copper Aluminium Nickel Mild steel Copper Aluminium Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Sulphur in cast iron Make the iron white and hard Increases hardness and brittleness Aids fusibility and fluidity Makes the iron soft and easily machinable Make the iron white and hard Increases hardness and brittleness Aids fusibility and fluidity Makes the iron soft and easily machinable ANSWER DOWNLOAD EXAMIANS APP
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