ISRO Mechanical & Aerospace 2012 - Question 5

All ISRO Mechanical & Aerospace papers | ISRO Mechanical & Aerospace 2012

The stress in the rod AB in the pin jointed truss ABCD (where P acts at C downwards) is

Figure for question 5, ISRO Mechanical & Aerospace 2012

  • A. 2P / \pi d²
  • B. 4P / \pi d²
  • C. 0
  • D. P / 2\pi d²

Answer: B. 4P / \pi d²

Explanation: Force in AB balances P. Stress = Force/Area = P / (\pi d² / 4) = 4P / \pi d².

| | All questions of ISRO Mechanical & Aerospace 2012