During construction of wood trusses, the ___connects and holds the truss in place.

The component that connects and holds wood trusses in place is known as a gusset plate. Gusset plates are typically fabricated from thin sheets of metal and play a crucial role in the structural integrity of trusses. They are used to strengthen the joints of the trusses by connecting the individual members, ensuring loads are distributed evenly.

When you consider how trusses function, gusset plates help to create a rigid connection between the various lumber pieces that compose the truss, thus maintaining its shape and stability under load. This is essential during both construction and throughout the life of the structure. The use of gusset plates is particularly common in wood truss systems, ensuring that the framework can support the intended loads without compromising safety.

In contrast, the other options, such as fire plates, bar joists, and I-beams, serve different functions in construction and structural support. Fire plates relate to fire safety in construction, bar joists are often used in steel framing, and I-beams are structural elements that bear significant loads but do not serve as connectors specific to trusses. Therefore, the gusset plate is the right term that accurately describes the connection and stabilization mechanism for wood trusses.