The truss shown in the figure has a uniform cross – sectional area of A and modulus elasticity E. 4. Taking member BD as the redundant member, which of the following most nearly gives the relative displacement of joint B and D when this member is removed. a. 114.05/AE b. 98.16/AE c. 81.21/AE d. 121.82/ AE 15 kN 5. Which of the following most nearly gives the stress in member BD a. 9.3 KN b. 8.4 KN c. 5.6 KN d. 11.4 KN 3 m 6. Which of the following most nearly gives the stress in member CD a. 9.05 KN b. 6.04 KN 3 m C. 13.4 KN d. 18.3 KN

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Pressure and Stress