Engineering Materials A material is said to be allotropic, if it has Atoms distributed in random pattern Fixed structure at all temperatures Any one of the above Different crystal structures at different temperatures Atoms distributed in random pattern Fixed structure at all temperatures Any one of the above Different crystal structures at different temperatures ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following has highest specific strength of all structural materials? Magnesium alloys Magnetic steel alloys Chromium alloys Titanium alloys Magnesium alloys Magnetic steel alloys Chromium alloys Titanium alloys ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage of carbon in low carbon steel is 0.3% 0.05% 0.5% 0.15% 0.3% 0.05% 0.5% 0.15% ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Gamma iron exits at following temperature Between 1400°C and 1539°C Between 910°C and 1400°C Near melting point Room temperature Between 1400°C and 1539°C Between 910°C and 1400°C Near melting point Room temperature ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials When steel containing less than 0.8% carbon is cooled slowly from temperatures above or within the critical range, it consists of Pearlite and cementite Mainly pearlite Mainly ferrite Ferrite and pearlite Pearlite and cementite Mainly pearlite Mainly ferrite Ferrite and pearlite ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Following elements have face-centered cubic structure Gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt Mg, Zn, Ti, Zr, Br, Cd All of these A iron (below 910°C and between 1400 to 1539°C), W Gamma iron (910° to 1400°C), Cu, Ag, Au, Al, Ni, Pb, Pt Mg, Zn, Ti, Zr, Br, Cd All of these A iron (below 910°C and between 1400 to 1539°C), W ANSWER DOWNLOAD EXAMIANS APP
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