Engineering Materials In high speed steels, manganese is used to tougher the metal and to increase its Critical temperature Melting point Hardness Yield point Critical temperature Melting point Hardness Yield point ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The alloying element which increases residual magnetism and coercive magnetic force in steel for magnets is Nickel Vanadium Cobalt Chromium Nickel Vanadium Cobalt Chromium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 40 : 30 : 20 : 10 50 : 20 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 40 : 30 : 20 : 10 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The property of a material which enables it to retain the deformation permanently, is called Malleability Plasticity Brittleness Ductility Malleability Plasticity Brittleness Ductility ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bell metal contains 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 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 Ball bearings are, usually, made from Low carbon steel Medium carbon steel High carbon steel Chrome steel Low carbon steel Medium carbon steel High carbon steel Chrome steel ANSWER DOWNLOAD EXAMIANS APP
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