The correct answer is: D. Any type of structure.
Williot-Mohr diagram is a graphical method for determining the deflection of any type of structure. It is based on the principle of virtual work, which states that the work done by the external forces on a structure is equal to the work done by the internal forces on the structure. The diagram is constructed by plotting the deflection of each point on the structure as a function of the rotation of the structure at that point. The slope of the line at any point on the diagram is equal to the deflection of the structure at that point.
The Williot-Mohr diagram can be used to determine the deflection of any type of structure, including trusses, beams, and rigid frames. It is a powerful tool for structural analysis and can be used to design and analyze structures of all sizes and complexity.
Here is a brief explanation of each option:
- Option A: Trusses only. The Williot-Mohr diagram can be used to determine the deflection of trusses, but it can also be used to determine the deflection of other types of structures.
- Option B: Beam only. The Williot-Mohr diagram can be used to determine the deflection of beams, but it can also be used to determine the deflection of other types of structures.
- Option C: Rigid frames only. The Williot-Mohr diagram can be used to determine the deflection of rigid frames, but it can also be used to determine the deflection of other types of structures.
- Option D: Any type of structure. The Williot-Mohr diagram can be used to determine the deflection of any type of structure.