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 Truss Analysis 20 Flashcards |
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What is the formula for the degree of static indeterminacy (DS) of a truss? |
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DS = m + re – 2j |
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Fill in the blank: The process of transforming displacements from the local co-ordinate system to the global co-ordinate system is called ______. |
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Displacement transformation |
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True or False: A hinge connection in a truss can transmit both axial forces and moments. |
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False. A hinge connection can only transmit forces but not moments. |
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Riddle: I am a matrix that relates forces and displacements in a structure, and I can be transformed between local and global systems. What am I? |
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Stiffness matrix |
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In the equation F = ku, what does 'k' represent? |
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The stiffness of the truss member |
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Which method can be used to determine three unknown member forces by cutting a truss into sections? |
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Method of Sections |
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Fill in the blank: If members M1 and M2 are collinear and meet at a joint, the third member M3 carries ______ force. |
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Zero |
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What is the primary assumption regarding the weight of trusses compared to the loads they carry? |
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Trusses are assumed to be of negligible weight compared to the loads they carry. |
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True or False: The method of joints involves satisfying equilibrium conditions for the forces at each joint in a truss. |
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True |
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Riddle: I consist of straight members connected at joints, and I can carry loads but not moments. What am I? |
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A truss |
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