Engineering Materials A material is said to be allotropic, if it has Different crystal structures at different temperatures Any one of the above Fixed structure at all temperatures Atoms distributed in random pattern Different crystal structures at different temperatures Any one of the above Fixed structure at all temperatures Atoms distributed in random pattern ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Tensile strength of steel can be safely increased by Adding carbon up to 6.3% Adding carbon up to 0.83% Adding carbon up to 2.8% Adding small quantities of copper Adding carbon up to 6.3% Adding carbon up to 0.83% Adding carbon up to 2.8% Adding small quantities of copper ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Stress relaxation is the phenomenon In which deformation tends to loosen the joint and produces a stress reduced In which parts are not loaded Stress reduces on increasing load In which stress remains constant on increasing load In which deformation tends to loosen the joint and produces a stress reduced In which parts are not loaded Stress reduces on increasing load In which stress remains constant on increasing load ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The percentage carbon content in wrought iron is about 0.1 2 0.4 0.02 0.1 2 0.4 0.02 ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials Which of the following is not the correct method of increasing fatigue limit? Shot peening Cold working Nitriding of surface Surface decarburisation Shot peening Cold working Nitriding of surface Surface decarburisation ANSWER DOWNLOAD EXAMIANS APP
Engineering Materials The hardness is the property of a material due to which it Can cut another metal Breaks with little permanent distortion Can be rolled or hammered into thin sheets Can be drawn into wires Can cut another metal Breaks with little permanent distortion Can be rolled or hammered into thin sheets Can be drawn into wires ANSWER DOWNLOAD EXAMIANS APP
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