A Three$-$Hinged Arch is a type of structural system commonly used in civil engineering. It consists of a curved member supported by three hinges or joints. The hinges allow the arch to rotate and accommodate changes in load and temperature, resulting in a more stable and flexible structure.

The reactions of a Three$-$Hinged Arch refer to the forces exerted on the arch at the supports or hinges. These reactions are essential to ensure the equilibrium and stability of the arch structure. The reactions typically include horizontal and vertical forces, as well as moments $($torques$)$ at the hinges.

Objective Question:

In a Three$-$Hinged Arch, what type of forces are exerted at the hinges?

A$)$ Vertical forces only B$)$ Horizontal forces only C$)$ Vertical and horizontal forces D$)$ Moments $($torques$)$ only