EG1109 2005 Term 1 Quiz 1 Ans

EG1109 2005 Term 1 Quiz 1 Ans - loads acting perpendicular...

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EG1109 Statics and Mechanics of Materials Quiz 1 (2005/06 Semester 1) Question 1 The sign’s weight s W = 160 N acts at the point shown in Figure Q1. The 50 N weight of the bar AD acts at the midpoint of the bar. Determine the tension in the cable AE and the reactions at D . Figure Q1 #(ANS) 145.8 N T = #(ANS) 137 N x D = #(ANS) 160.1 N y D = E D C B A 30 o 20 o 0.65 m 0.60 m 0.15 m 0.25 m B B i i c c y y l l e e R R e e n n t t a a l l s s s W WALL
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Question 2 The roof truss in Figure Q2 is subjected to wind load which may be modeled as concentrated
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Unformatted text preview: loads acting perpendicular to the windward side at joints , A E and . F The magnitudes of the loads are as shown in Figure Q2. Determine the forces in members CD , DE and . CG Triangle CDF is an equilateral triangle and joints E and G are at the midpoints of their respective sides. Figure Q2 #(ANS) 20.2 kN (Tension) CD F = #(ANS) 0 kN CG F = #(ANS) 10.4 kN (Compression) DE F = G F E D C B A 10 kN 8 kN 5 kN 3 m 2 m 3 m 3 m...
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This note was uploaded on 02/25/2011 for the course EG 1109 taught by Professor Prof during the Spring '11 term at National University of Singapore.

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EG1109 2005 Term 1 Quiz 1 Ans - loads acting perpendicular...

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