Materials and Construction Pure nickel is Ferromagnetic at room temperature Ferromagnetic above its curie point (i.e., 415°C) Having h.c.p. crystal lattice Not resistant to oxidation at high temperature Ferromagnetic at room temperature Ferromagnetic above its curie point (i.e., 415°C) Having h.c.p. crystal lattice Not resistant to oxidation at high temperature ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Titanium metal None of these Can not be welded Is used in oceanographic and space exploration applications Exists in three allotropic forms None of these Can not be welded Is used in oceanographic and space exploration applications Exists in three allotropic forms ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Which of the following is the hardest? Ferrite Pearlite Austenite Cementite Ferrite Pearlite Austenite Cementite ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Platinum and silver are corroded by Caustic soda solution None of these Sulphuric acid (10%) Phosphoric acid Caustic soda solution None of these Sulphuric acid (10%) Phosphoric acid ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Presence of silicon in steel None of these Indicates that steel is not deoxidised properly Decreases the blow holes formation tendency in castings Is in the form of free Si None of these Indicates that steel is not deoxidised properly Decreases the blow holes formation tendency in castings Is in the form of free Si ANSWER DOWNLOAD EXAMIANS APP
Materials and Construction Low carbon steels are those in which carbon percentage is around 0.4 to 0.7 0.8 to 1.5 0.1 to 0.35 1.5 to 2 0.4 to 0.7 0.8 to 1.5 0.1 to 0.35 1.5 to 2 ANSWER DOWNLOAD EXAMIANS APP
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