Engineering Materials The addition of which of the following improves machining of copper? Tin Sulphur Zinc Vanadium Tin Sulphur Zinc Vanadium 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 Surface defect Line defect Point defect None of these Surface defect Line defect Point defect ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Aluminium bronze contains 90% magnesium and 9% aluminium with some copper 10% aluminium and 90% copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg 90% magnesium and 9% aluminium with some copper 10% aluminium and 90% copper 94% aluminium, 4% copper and 0.5% Mn, Mg, Si and Fe 92.5% aluminium, 4% copper, 2% nickel, and 1.5% Mg ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gun metal contains 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 70% copper and 30% zinc 85 - 92% copper and rest tin with little lead and nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Iron-carbon alloys containing 1.7 to 4.3% carbon are known as Hypoeutectic cast irons Eutectic cast irons Hypereutectic cast irons None of these Hypoeutectic cast irons Eutectic cast irons Hypereutectic cast irons None of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The toughness of a material __________ when it is heated. Increases Decreases None of these Remain same Increases Decreases None of these Remain same ANSWER DOWNLOAD EXAMIANS APP
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