25) The value of modulus of elasticity for mild steel is of the order of
2.1 X 106 kg/cm2
Related Engineering Materials MCQ with Answers
0.25 to 0.33
Poisson's ratio is defined as the ratio of Lateral strain and longitudinal strain.
slenderness ratio, area of cross-section and modulus of elasticity
half the weight of bar applied at lower end
elasticity
Elasticity:
Whenever an external force is applied on a metal, it deforms. Elasticity is the property by virtue of which a metal regains its original shape when the external force applied on it is removed.
es: forming, forging, hammering
Plasticity: Plasticity is the property by which a metal retains its deformation permanently, when the external force applied on it is removed.
Examples: forming, forging, hammering
Ductility: Ductility is the property by which a metal can be drawn into thin wires. It is determined by percentage elongation and percentage reduction in area of a metal.
Malleability: Malleability is the property by which a metal can be rolled into thin sheets. Highly malleable metals (like Mild Steel) are extensively used in making sheet metals.
