Materials and Construction The damage/deterioration of metals by the __________ action of fluids is called 'erosion'. Abrasive Neither A nor B Corrosive Both A & B Abrasive Neither A nor B Corrosive Both A & B ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Clock pendulums are usually made of __________ steel. Heat resisting High speed Stainless None of these Heat resisting High speed Stainless None of these 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)? Alumel Chromel Invar Constantan Alumel Chromel Invar Constantan ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction __________ iron is produced, when molten pig iron is chilled suddenly. None of these Wrought Grey cast White cast None of these Wrought Grey cast White cast ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the softest material? Flourite Corrundum Calcite Quartz Flourite Corrundum Calcite Quartz ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Pure nickel is Ferromagnetic at room temperature Not resistant to oxidation at high temperature Ferromagnetic above its curie point (i.e., 415°C) Having h.c.p. crystal lattice Ferromagnetic at room temperature Not resistant to oxidation at high temperature Ferromagnetic above its curie point (i.e., 415°C) Having h.c.p. crystal lattice ANSWER DOWNLOAD EXAMIANS APP
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