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  1. Unit mass of steel
  2. Modulus of elasticity
  3. Poisson’s ratio
  4. All the options are correct
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Option 4 : All the options are correct

Concept:

According to clause no. 2.2.4.1 of IS 800: 2007, the following physical properties of structural steel may be taken irrespective of its grade as:

a) Unit mass of steel, ρ = 7850 kg/m3

b) Modulus of elasticity, E = 2.0 x 105 N/mm2 (Mpa)

c) Poisson ratio, µ = 0.3

d) Modulus of rigidity, G = 0.769 x 105 N/mm2 (Mpa)

e) Co-efficient of thermal expansion αt = 12 × 10-6 ℃

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