Engineering Materials Free carbon in iron makes the metal Hard and gives a fine grained crystalline structure Soft and gives a fine grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a coarse grained crystalline structure Hard and gives a fine grained crystalline structure Soft and gives a fine grained crystalline structure Hard and gives a coarse grained crystalline structure Soft and gives a coarse grained crystalline structure ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The machinability of steel is increased by Phosphorous, lead and sulphur Phosphorous and aluminium Silicon and sulphur Sulphur, graphite and aluminium Phosphorous, lead and sulphur Phosphorous and aluminium Silicon and sulphur Sulphur, graphite and aluminium ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials If a refractory contains high content of silicon, it means refractory is Acidic Basic Neutral Brittle Acidic Basic Neutral Brittle ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Cobalt in steel Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Improves cutting ability and reduce hardenability Gives ductility, toughness, tensile strength and anti corrosion property Improves wear resistance, cutting ability and toughness Refines grain size and produces less tendency to carburisation, improve corrosion and heat resistant proper ties Improves cutting ability and reduce hardenability Gives ductility, toughness, tensile strength and anti corrosion property Improves wear resistance, cutting ability and toughness ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following metal is used in making electrical resistance wire for electric furnaces and heating elements? Babbitt metal Phosphor bronze Nichrome Monel metal Babbitt metal Phosphor bronze Nichrome Monel metal ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Bronze is an alloy of Copper and zinc Copper and tin None of these Copper, tin and zinc Copper and zinc Copper and tin None of these Copper, tin and zinc ANSWER DOWNLOAD EXAMIANS APP
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