To design both the members and connections in a truss, it is necessary to determine the force developed in each member when the truss is subjected to a given loading. which of the following are correct assumptions that are made when designing a truss?
1) all members in a truss are straight.
2) the members are connected by smooth pins.
3) all loadings are applied at the joints.
4) the weight of the members is always neglected.
5) all loadings are distributed uniformly over the outermost members.
6) the weight of the members is always included.

* All members in a truss are straight.

* The members are connected by smooth pins.

* All loadings are applied at the joints.

* The weight of the members is always included.

Explanation:

A truss is an assembly of thin and straight elements that support mainly axial loads in those elements. The elements that make up the truss, are joined at their end points by means of frictionless smooth pins located on a plate, or by welding medium, rivets, screws, to form a rigid framework.

Because of the elements or members are thin and unable to load lateral loads, all loads must be applied to the joints or nodes

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