Haryana Polytechnic Previous Years Question Papers for Civil Engineering, Mechanical Engineering

  Physical Properties of Steel are as follow : 1. Unit Weight of Steel = 78500 N/m3 2. E = Young's Modulus of elasticity = 2 X 10^5 N/mm2 3.   G = Modulus of Rigidity = 0.768 X 10^5 N/mm2 4. Coefficient of thermal expansion or contraction = 12 X 10^-6/ deg Celsius 5. Poisson Ration = 0.3