Engineering Materials When filing or machining cast iron makes our hands black, then it shows that ________ is present in cast iron. None of these Both A and B Cementite Free graphite None of these Both A and B Cementite Free graphite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials In compression, a prism of brittle material will break By shearing along oblique plane In direction perpendicular to application of load By crushing into thousands of pieces By forming a bulge By shearing along oblique plane In direction perpendicular to application of load By crushing into thousands of pieces By forming a bulge ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following has a fine gold colour and is used for imitation jewellery? Aluminium bronze Gun metal Silicon bronze Babbitt metal Aluminium bronze Gun metal Silicon bronze Babbitt metal ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following element results in presence of free graphite in C.I.? Silicon Carbon Manganese Sulphur Silicon Carbon Manganese Sulphur ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bell metal contains 70% copper and 30% zinc 70 - 75% copper and rest tin 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel 70% copper and 30% zinc 70 - 75% copper and rest tin 90% copper and 10% tin 85 - 92% copper and rest tin with little lead and nickel ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Chromium in steel 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 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 ANSWER DOWNLOAD EXAMIANS APP
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