Engineering Materials The percentage of carbon in grey iron castings usually varies between 0.5 to 1% 2.5 to 4.5% 5 to 7% 0.012 0.5 to 1% 2.5 to 4.5% 5 to 7% 0.012 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability Improves wear resistance, cutting ability and toughness Gives ductility, toughness, tensile strength and anti-corrosion properties Refines grain size and produces less tendency to carburisation, improves corrosion and heat resistant properties Improves cutting ability and reduces hardenability ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Connecting rod is, usually, made from Low carbon steel High speed steel High carbon steel Medium carbon steel Low carbon steel High speed steel High carbon steel Medium carbon steel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Quenching is not necessary when hardening is done by Flame hardening Case hardening Nitriding Any one of these Flame hardening Case hardening Nitriding Any one of these ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tensile strength of steel can be safely increased by Adding carbon up to 2.8% Adding carbon up to 0.83% Adding carbon up to 6.3% Adding small quantities of copper Adding carbon up to 2.8% Adding carbon up to 0.83% Adding carbon up to 6.3% Adding small quantities of copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following has a fine gold colour and is used for imitation jewellery? Silicon bronze Aluminium bronze Gun metal Babbitt metal Silicon bronze Aluminium bronze Gun metal Babbitt metal ANSWER DOWNLOAD EXAMIANS APP
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