Materials and Construction A hardened steel essentially contains Martensite Sorbite None of these Troostite Martensite Sorbite None of these Troostite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following constituents of cast iron is mainly responsible for imparting it an anti-corrosive property? Phosphorus Silicon None of these Sulphur Phosphorus Silicon None of these Sulphur ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Ceramic materials Are exemplified by clay and mica Are poor electrical conductors due to lack of free electrons All of these Never exhibit polymorphism Are exemplified by clay and mica Are poor electrical conductors due to lack of free electrons All of these Never exhibit polymorphism ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Pure nickel is Ferromagnetic above its curie point (i.e., 415°C) Not resistant to oxidation at high temperature Ferromagnetic at room temperature Having h.c.p. crystal lattice Ferromagnetic above its curie point (i.e., 415°C) Not resistant to oxidation at high temperature Ferromagnetic at room temperature Having h.c.p. crystal lattice ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Chrome vanadium steels usually contain 0.8 to 1.1% Cr, 0.25 to 0.35% C and < 0.25% V. Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor toughness Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor fatigue resistance Used for making axle & shafts of aeroplanes, automobiles and locomotives Having poor toughness Not helpful in producing cleaner steel due to oxidising action of vanadium Having poor fatigue resistance ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Tempering of steel is done to make it Rollable Soft Hard Brittle Rollable Soft Hard Brittle ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS