Engineering Materials Super conduction by metals is observed in the temperature range of Above 100°K Around 100°C Around 0°C Below 10°K Above 100°K Around 100°C Around 0°C Below 10°K ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gun metal contains 70 - 78% copper and rest tin 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 70 - 78% copper and rest tin 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tungsten in steel Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Crystal structure of a material is, generally, examined by Naked eye Optical microscope X-ray techniques Metallurgical microscope Naked eye Optical microscope X-ray techniques Metallurgical microscope ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Silicon when added to copper improves Machinability Hardness and strength Strength and ductility Hardness Machinability Hardness and strength Strength and ductility Hardness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following material has nearly zero coefficient of expansion? Stainless steel High speed steel Heat resisting steel Invar Stainless steel High speed steel Heat resisting steel Invar ANSWER DOWNLOAD EXAMIANS APP
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