Engineering Materials Preheating is essential in welding Cast iron All nonferrous materials All of these High speed steel Cast iron All nonferrous materials All of these High speed steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel increases if it contains Martensite Austenite Cementite Pearlite Martensite Austenite Cementite Pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bell metal contains 85 - 92% copper and rest tin with little lead and nickel 70 - 75% copper and rest tin 70% copper and 30% zinc 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel 70 - 75% copper and rest tin 70% copper and 30% zinc 90% copper and 10% tin ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The property of a material which enables it to retain the deformation permanently, is called Plasticity Ductility Malleability Brittleness Plasticity Ductility Malleability Brittleness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A small percentage of boron is added to steel in order to Reduce machinability Increase wear resistance Increase hardenability Increase endurance strength Reduce machinability Increase wear resistance Increase hardenability Increase endurance strength ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In nodular iron, graphite is in the form of Cementite Free carbon Flakes Spheroids Cementite Free carbon Flakes Spheroids ANSWER DOWNLOAD EXAMIANS APP
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