Engineering Materials Free cutting steels Require minimum cutting force Can be cut freely Contain carbon in free from Is used where rapid machining is the prime requirement Require minimum cutting force Can be cut freely Contain carbon in free from Is used where rapid machining is the prime requirement ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical temperature Increases as the carbon content in steel increases Decreases as the carbon content in steel increases Depends upon the rate of heating Is same for all steels Increases as the carbon content in steel increases Decreases as the carbon content in steel increases Depends upon the rate of heating Is same for all steels ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The defect which takes place due to imperfect packing of atoms during crystallization is known as Line defect None of these Surface defect Point defect Line defect None of these Surface defect Point defect ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In the lower part of the blast furnace (zone of fusion), the temperature is 1200°C to 1300°C 800°C to 1000°C 400° to 700°C 1500°C to 1700°C 1200°C to 1300°C 800°C to 1000°C 400° to 700°C 1500°C to 1700°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gun metal contains 70 - 78% 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 - 78% 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 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tensile strength of steel can be safely increased by Adding carbon up to 0.83% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 6.3% Adding carbon up to 0.83% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 6.3% ANSWER DOWNLOAD EXAMIANS APP
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