A.For the plane truss loaded as shown below, the force (k) in member CJ is most nearly: A. 34 (tension) B. 34 (compression) C. 28 (tension) D. 28 (compression) B.A circular reinforced-concrete column supports a 300-k dead load and a 350-k live load. The compressive strength of the concrete is 4,000 psi and the yield stress of the reinforcement steel is 60 ksi. The longitudinal reinforcement is laterally confined by a 3/8-in.-diameter spiral with pitch of 3 in. If the maximum reinforcement is used, the required diameter of the column (in.) is most nearly: A. 13 B. 14 C. 16 D. 17
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