What is the term for a connection type where materials are bonded together by welds or glues?

What is the term for a connection type where materials are bonded together by welds or glues?

• A. Pinned
• B. Rigid
• C. Sliding
• D. Bolted

Answer: (B)

The main idea here is how joints handle rotation and moment transfer. Welded or glued joints create a single bonded interface that resists relative rotation, so they transfer bending moments and act as a fixed, stiff connection. That’s what makes them “rigid”—they don’t allow the joined parts to rotate freely or slide relative to each other. In contrast, a pinned connection allows rotation and does not transfer bending moment, and sliding connections permit relative movement. Bolted joints can be rigid or not depending on design, but welds and glues plainly establish a fixed, moment-transferring bond, which is why this term is used.

The main idea here is how joints handle rotation and moment transfer. Welded or glued joints create a single bonded interface that resists relative rotation, so they transfer bending moments and act as a fixed, stiff connection. That’s what makes them “rigid”—they don’t allow the joined parts to rotate freely or slide relative to each other.

In contrast, a pinned connection allows rotation and does not transfer bending moment, and sliding connections permit relative movement. Bolted joints can be rigid or not depending on design, but welds and glues plainly establish a fixed, moment-transferring bond, which is why this term is used.