What is the condition for equilibrium in plastic analysis?

Degree of freedom (DOF) or DKI, for the structure is

The moments in the arch will be zero, if

The impact tests are used to determine

Strain in concrete at zero stress is called:

The value of possion's ratio always remains

A simply supported beam of span L carries a uniformly distributed load, w. The maximum bending moment, M is

Which one is correct if the deflection of a beam is y

Given pin jointed frame is