Materials and Construction Softening of hardned steel is done by its Annealing Normalising Tempering Carburising Annealing Normalising Tempering Carburising ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following has a very high carbide forming tendency in steels? Nickel Chromium Silicon Vanadium Nickel Chromium Silicon Vanadium ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement. Aluminium for all Both A & B Nickel alloys for high Brass for low Aluminium for all Both A & B Nickel alloys for high Brass for low ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ of a material results, when its strength is increased & ductility is decreased by heating at a relatively lower temperature after cold working. Screw dislocation Solid solution hardening Strain ageing Twinning Screw dislocation Solid solution hardening Strain ageing Twinning ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is universally employed as the low expansion metal in the bimetallic thermometer, which is an iron-nickel alloy containing 36% nickel and has very low co-efficient of expansion (l/20th of ordinary metals)? Chromel Invar Constantan Alumel Chromel Invar Constantan Alumel ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of high amount of silicon in cast iron Increases the contraction of the metal Reduces its fluidity Increases the formation of graphite Suppresses the decomposition of Fe₃ C Increases the contraction of the metal Reduces its fluidity Increases the formation of graphite Suppresses the decomposition of Fe₃ C ANSWER DOWNLOAD EXAMIANS APP
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