Engineering Materials Which of the following material has nearly zero coefficient of expansion? Heat resisting steel Invar Stainless steel High speed steel Heat resisting steel Invar Stainless steel High speed steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The following element can't impart high strength at elevated temperature Magnesium Silicon Manganese Nickel Magnesium Silicon Manganese Nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The property of a material which enables it to retain the deformation permanently, is called Brittleness Malleability Ductility Plasticity Brittleness Malleability Ductility Plasticity ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gun metal contains 70% copper and 30% zinc 85 - 92% copper and rest tin with little lead and nickel 70 - 78% copper and rest tin 90% copper and 10% tin 70% copper and 30% zinc 85 - 92% copper and rest tin with little lead and nickel 70 - 78% copper and rest tin 90% copper and 10% tin ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of manganese to aluminium results in One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance Improvement of casting characteristics One of the best known age and precipitation hardening systems Improving machinability Improvement of corrosion resistance Improvement of casting characteristics ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Steel contains 50% or more iron Alloying elements like chromium, tungsten nickel and copper Elements like phosphorus, sulphur and silicon in varying quantities 80% or more iron 50% or more iron Alloying elements like chromium, tungsten nickel and copper Elements like phosphorus, sulphur and silicon in varying quantities 80% or more iron ANSWER DOWNLOAD EXAMIANS APP
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