Which term describes a timber member formed by nailing multiple boards together?

• A. Modular Joint
• B. Maintenance of Traffic
• C. Nail Laminated
• D. Movable Bridge

Answer: (C)

The concept being tested is how a timber member can be made by binding several boards together to act as one structural element.

Nail-laminated timber describes exactly that: boards laid edge to edge and fastened with nails to form a single, built-up beam or slab. The nails tie the boards together so the assembly behaves as a continuous wood member, increasing depth and stiffness compared to a single board and allowing the use of readily available lumber. This method is a traditional, economical way to create larger timber sections without glue or metal plates. The other options refer to unrelated concepts—modular joint isn’t about building a timber member from boards, maintenance of traffic is a traffic-control term, and movable bridge denotes a type of span that can move.