1.

The interaction expression for stiffeners subjected to external loads or moments is given by

A. [(F<sub>q</sub>-F<sub>s</sub>)/F<sub>q</sub>d]+(F<sub>s</sub>/F<sub>s</sub>d)+(M<sub>q</sub>/M<sub>yq</sub>) &lt; 1
B. [(F<sub>q</sub>-F<sub>s</sub>)/F<sub>q</sub>d]+(F<sub>s</sub>/F<sub>s</sub>d)+(M<sub>q</sub>/M<sub>yq</sub>) &gt; 1
C. [(F<sub>q</sub>-F<sub>s</sub>)/F<sub>q</sub>d]-(F<sub>s</sub>/F<sub>s</sub>d)-(M<sub>q</sub>/M<sub>yq</sub>) &lt; 1
D. [(F<sub>q</sub>+F<sub>s</sub>)/F<sub>q</sub>d]-(F<sub>s</sub>/F<sub>s</sub>d)-(M<sub>q</sub>/M<sub>yq</sub>) &gt; 1
Answer» B. [(F<sub>q</sub>-F<sub>s</sub>)/F<sub>q</sub>d]+(F<sub>s</sub>/F<sub>s</sub>d)+(M<sub>q</sub>/M<sub>yq</sub>) &gt; 1


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