Engineering Materials A small percentage of boron is added to steel in order to Reduce machinability Increase endurance strength Increase wear resistance Increase hardenability Reduce machinability Increase endurance strength Increase wear resistance Increase hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which can replace tungsten in high speed steels is Cobalt Vanadium Nickel Molybdenum Cobalt Vanadium Nickel Molybdenum ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The presence of hydrogen in steel causes Embrittlement Corrosion resistance Reduced neutron absorption cross-section Improved Weldability Embrittlement Corrosion resistance Reduced neutron absorption cross-section Improved Weldability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bell metal contains 85 - 92% copper and rest tin with little lead and nickel 90% copper and 10% tin 70% copper and 30% zinc 70 - 75% copper and rest tin 85 - 92% copper and rest tin with little lead and nickel 90% copper and 10% tin 70% copper and 30% zinc 70 - 75% copper and rest tin ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Addition of copper to aluminium results in Improvement of casting characteristics Improving machinability One of the best known age and precipitation hardening systems Improvement of corrosion resistance Improvement of casting characteristics Improving machinability One of the best known age and precipitation hardening systems Improvement of corrosion resistance ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The defect which takes place due to imperfect packing of atoms during crystallization is known as None of these Point defect Surface defect Line defect None of these Point defect Surface defect Line defect ANSWER DOWNLOAD EXAMIANS APP
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