Engineering Materials Steel contains Elements like phosphorus, sulphur and silicon in varying quantities Alloying elements like chromium, tungsten nickel and copper 50% or more iron 80% or more iron Elements like phosphorus, sulphur and silicon in varying quantities Alloying elements like chromium, tungsten nickel and copper 50% or more iron 80% or more iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. Both A and B None of these Cementite Free graphite Both A and B None of these Cementite Free graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following when used in ordinary low carbon steels, makes the metal ductile and of good bending qualities? Manganese Sulphur Silicon Phosphorus Manganese Sulphur Silicon Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel increases if it contains Cementite Austenite Pearlite Martensite Cementite Austenite Pearlite Martensite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness of steel primarily depends on Heat treatment employed Percentage of alloying elements Percentage of carbon Shape of carbides and their distribution in iron Heat treatment employed Percentage of alloying elements Percentage of carbon Shape of carbides and their distribution in iron ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The surface hardness of the following order is achieved by nitriding operation 250 VPN 600 VPN 1500 VPN 1000 to 1100 VPN 250 VPN 600 VPN 1500 VPN 1000 to 1100 VPN ANSWER DOWNLOAD EXAMIANS APP
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