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1. Determine the minimum cross sectional area the cable shown must have if the allowable stress in the cable is 10,000 psi. Check both lengths AC and CD and let the most critical portion control the size for the whole length ACD.

2. The steel specimen shown is used in a tension test. At what load P will the mechanical gauge read 0.002-in. deformation? Assume E = 30 x 10⁶ psi.

3. A round bar is made up of steel, aluminum and copper. Determine the radius of each portion necessary in order to carry the given load, if the allowable stresses in the steel, aluminum and copper are 20,000, 10,000 and 5,000 psi respectively.

4. A surveyor's chain, 100-ft standard length, is 0.24 inches longer because of an increase in temperature. Determine the average thermal strain for this chain.

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