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prel1_f07 - ENGRD 202 MECHANICS OF SOLIDS Prelim I...

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ENGRD 202 – MECHANICS OF SOLIDS Prelim I Examination Tuesday, September 25, 2007 Academic integrity is expected of all students at all times whether in the presence or absence of members of the teaching staff. If you understand this and agree that you will neither give, nor use, nor receive unauthorized aid in this examination, please sign the Academic Integrity space on the examination booklet. Thank you. Please turn off your cell phone. No calls are to be made or received. 1. Please sketch - as carefully as you can - the free body diagrams for the following structures. 25 Points (5 pts ea) You should NOT solve for any reactions, etc. We only want the FBD ’s . (a) Free Body Diagram. The bent beam AB is near weightless and has dimensions shown in the figure. It is loaded with a moment of 2 kN-m and a horizontal force of F =4 kN as shown. Sketch the FBD of the bent beam. A loaded bent beam. (b) A loaded L-shape beam. Free Body Diagram. The near-weightless L-shaped bracket ACD supporting a load of 150 N is pivoted at C and has dimensions shown in the figure at left. Connecting ends A and D is a taut string which
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