Engineering Materials The bond formed by transferring electrons from one atom to another is called Covalent bond None of these Metallic bond Ionic bond Covalent bond None of these Metallic bond Ionic bond ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The lower critical point for all steels is 700°C 600°C 913°C 723°C 700°C 600°C 913°C 723°C ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Nickel in steel Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties Improves wear resistance, cutting ability and toughness Improves cutting ability and reduces hardenability Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Gives ductility, toughness, tensile strength and anti-corrosion properties ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Pick up wrong statement about wrought iron It melts at 1535°C It is very soft and ductile It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It contains carbon of the order of 0 to 0.25% It melts at 1535°C It is very soft and ductile It is made by adding suitable percentage of carbon to molten iron and subjecting the product to repeated hammering and rolling It contains carbon of the order of 0 to 0.25% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The surface hardness of the following order is achieved by nitriding operation 1000 to 1100 VPN 250 VPN 1500 VPN 600 VPN 1000 to 1100 VPN 250 VPN 1500 VPN 600 VPN ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Quenching is not necessary when hardening is done by Any one of these Nitriding Case hardening Flame hardening Any one of these Nitriding Case hardening Flame hardening ANSWER DOWNLOAD EXAMIANS APP
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