Red Seal Ironworker (Generalist) Practice Exam

Which component is specifically designed to resist compression forces?

1. Strut

2. Purlin

3. Anchor bolt

4. Column splice

The correct answer is: Strut

A strut is specifically designed to resist compression forces. In structural engineering, a strut is a structural component that supports loads primarily through compressive stress. When forces are applied to a structure, various members will experience tension or compression based on their position and the nature of the loads. Struts are critical elements in various types of frameworks, including trusses and braced frames, where they help maintain stability and distribute loads effectively. The other components mentioned have different functions. A purlin typically serves as a horizontal member in roof framing that supports the roofing material and may not be primarily designed to resist compression. An anchor bolt is used to secure structures to their foundations, resisting lateral and uplift loads rather than compressive loads. A column splice connects two columns together but does not inherently provide resistance to compression; rather, it is a joint that allows for lengthening or connecting columns. In summary, the strut's specific design and purpose in resisting compression forces make it the correct choice for this question.