Engineering Materials Which of the following material has nearly zero coefficient of expansion? Stainless steel Invar Heat resisting steel High speed steel Stainless steel Invar Heat resisting steel High speed steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cast iron is a Malleable material Ductile material Brittle material Tough material Malleable material Ductile material Brittle material Tough material ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The steel widely used for motor car crankshafts is Nickel steel Nickel-chrome steel Chrome steel Silicon steel Nickel steel Nickel-chrome steel Chrome steel Silicon steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which is the false statement about wrought iron? It has Uniform strength in all directions 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in grey iron castings usually varies between 0.012 2.5 to 4.5% 5 to 7% 0.5 to 1% 0.012 2.5 to 4.5% 5 to 7% 0.5 to 1% ANSWER DOWNLOAD EXAMIANS APP
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