Materials and Construction The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement. Both A & B Aluminium for all Nickel alloys for high Brass for low Both A & B Aluminium for all Nickel alloys for high Brass for low ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Addition of __________ in steel can help in increasing the depth of hardness. Vanadium Tungsten Chromium Nickel Vanadium Tungsten Chromium Nickel 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 Alumel Invar Constantan Chromel Alumel Invar Constantan ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction With increase in carbide/graphite ratio in cast iron, its Ductility decreases Both A & B Neither A nor B Hardness & brittleness increases Ductility decreases Both A & B Neither A nor B Hardness & brittleness increases ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction As the impurities are oxidised, the melting point of iron May increase or decrease ; unpredictable Decreases Remains unchanged Increases May increase or decrease ; unpredictable Decreases Remains unchanged Increases ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Electronic structure of a material is generally studied by Spectroscopic techniques Electron diffraction Metallurgical microscope X-ray Spectroscopic techniques Electron diffraction Metallurgical microscope X-ray ANSWER DOWNLOAD EXAMIANS APP
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