Engineering Materials Which is false statement about properties of aluminium? Modulus of elasticity is fairly low Creep strength limits its use to fairly low temperatures Wear resistance is very good Fatigue strength is not high Modulus of elasticity is fairly low Creep strength limits its use to fairly low temperatures Wear resistance is very good Fatigue strength is not high ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. None of these Both A and B Cementite Free graphite None of these Both A and B Cementite Free graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Drop forging dies contain carbon of the order of 0.7 to 0.9% 0.6 to 0.7% 0.25 to 0.5% 0.1 to 0.2% 0.7 to 0.9% 0.6 to 0.7% 0.25 to 0.5% 0.1 to 0.2% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is the false statement about wrought iron? It has High resistance to rusting and corrosion High ductility Ability of hold protective coating Uniform strength in all directions High resistance to rusting and corrosion High ductility Ability of hold protective coating Uniform strength in all directions ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The purpose of heat treatment is to Modify the structure of the material Relieve the stresses set up in the material after hot or cold working Any one of these Change grain size Modify the structure of the material Relieve the stresses set up in the material after hot or cold working Any one of these Change grain size ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is known as allotropic or polymorphic if it Exists in several crystal forms at different temperatures Has a fixed structure under all conditions Responds to heat treatment Has its atoms distributed in a random pattern Exists in several crystal forms at different temperatures Has a fixed structure under all conditions Responds to heat treatment Has its atoms distributed in a random pattern ANSWER DOWNLOAD EXAMIANS APP
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