When a load is applied to a structure with rigid jointsa)There is no r...
Explanation:
When a load is applied to a structure with rigid joints, the following can occur:
Rotation and Displacement of Joint: In some cases, the application of a load can cause rotation and displacement of the joint. This is particularly true if the load is large or the joint is weak. When this occurs, the angle between the members connected to the joint will change.
Angle between Members Remains Same: However, even if there is rotation and displacement of the joint, the angle between the members connected to the joint should remain the same. This is because rigid joints do not allow for any movement or deformation of the members connected to them. As a result, the members will maintain their original shape and orientation.
Exceptions: It should be noted that there are some exceptions to this rule. For example, if the members connected to the joint are not of equal length or if the joint is not perfectly rigid, there may be some change in the angle between the members after the load is applied.
Therefore, the correct answer to this question is option D - "There can be rotation and displacement of joint but the angle between the members connected to the joint remains same even after application of the load."