Correct Answer - Option 4 : Concentrated load and line load
Explanation:
Structural idealization
For structural analysis, the idealization of the structural system is done to simplify the structure and making the calculations simpler and easier.
Some of the idealizations that we are aware are listed below:
- We assume the beam as a line structure.
- The joints of a truss are pin-jointed.
- Any load can be idealized into concentrated and line loads.
- In truss, we assume loads are acting only on joints; the loads acting on members cause bending moments, which is not suitable for the truss. And as we have assumed truss to possess pin or hinge joints, it cannot take bending moments.