Engineering Materials Which of the following material has nearly zero coefficient of expansion? High speed steel Heat resisting steel Stainless steel Invar High speed steel Heat resisting steel Stainless steel Invar ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of steel is increased by Silicon and sulphur Phosphorous and aluminium Sulphur, graphite and aluminium Phosphorous, lead and sulphur Silicon and sulphur Phosphorous and aluminium Sulphur, graphite and aluminium Phosphorous, lead and sulphur ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Duralumin contains 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium 3.5 to 4.5% copper, 1.2 to 1.7% manganese, 1.8 to 2.3% nickel, 0.6% each of silicon, magnesium and iron, and rest aluminium 3.5 to 4.5% copper, 0.4 to 0.7% magnesium, 0.4 to 0.7% manganese and rest aluminium 5 to 6% tin, 2 to 3% copper and rest aluminium 4 to 4.5% magnesium, 3 to 4% copper and rest aluminium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Monel metal contains 88% copper and 10% tin and rest zinc Alloy of tin, lead and cadmium Malleable iron and zinc 63 to 67% nickel and 30% copper 88% copper and 10% tin and rest zinc Alloy of tin, lead and cadmium Malleable iron and zinc 63 to 67% nickel and 30% copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials For a steel containing 0.8% carbon There can be any number of critical points There is only one critical point There are two critical points There is no critical point There can be any number of critical points There is only one critical point There are two critical points There is no critical point ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials A material is said to be allotropic, if it has Fixed structure at all temperatures Atoms distributed in random pattern Different crystal structures at different temperatures Any one of the above Fixed structure at all temperatures Atoms distributed in random pattern Different crystal structures at different temperatures Any one of the above ANSWER DOWNLOAD EXAMIANS APP
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