final exam - PART I: MULTIPLE CHOICE PROBLEMS (6 Points...

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PART I: MULTIPLE CHOICE PROBLEMS (6 Points each) 1. A square box beam is made of two 20X80-mm planks and 20X120-mm planks nailed together as shown. Knowing that the spacing between the nails is s = 50 mm and that the allowable shearing force in each nail is 300N, the largest allowable vertical shear in the beam is most nearly (a) 147 N (b) 694 N (c) 1387 N (d) 2770 N (e) 5540 N 2. In the structure shown, each member has a diameter of 0.75 in and is made from steel ( E = 29x10 6 psi). If a factor of safety of 2.0 against buckling is required, the maximum allowable load P is most nearly P 3 ft. 2 ft. 30 ° (a) 7720 lb (b) 3430 lb (c) 3960 lb (d) 15400 lb (e) 6860 lb Page 2
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3. For the beam and loading condition shown, the reaction at support C is most nearly (a) (6wL + 5P)/16 (b) (5wL + 6P)/16 (c) (6wL + 5P)/8 (d) (5wL + 6P)/8 (e) (6wL + 5P)/4 4. The connection shown below consists of five steel plates, each 3/16 in. thick, joined by a single ¼ in. diameter bolt. The total load transferred between the plates is 1200 lb, distributed among the plates as
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This note was uploaded on 10/29/2011 for the course ME 2124 taught by Professor Uzgoren during the Spring '08 term at Virginia Tech.

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final exam - PART I: MULTIPLE CHOICE PROBLEMS (6 Points...

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