The following should be arranged in ascending order based on their safety factor in the working stress method: (i) Connections, (ii) Short column, (iii) Long column, (iv) Tension members

Explanation:

Working stress method:

• Working stress method is used for the design of Reinforced concrete, Steel, and Timber Structures. 
• The main assumption in the WSM is that the behavior of structural material is restricted within the linear-elastic region and the safety of it is ensured by restricting the stresses coming on the members by working loads.
• It assumes that both steel and concrete are elastic and obey hook's law.
• FOS for concrete is taken as 3 and for steel, it is 1.8

So, from the above table, the sequence of FOS will be

Short column = Tension member < Long column < Connection

Additional InformationDrawbacks of WSM:

• It assumes the concrete is elastic which is not true.
• It uses a factor of safety for stresses only and not for loads.
• It gives uneconomical sections.