If in a pin-jointed plane frame (m + r) > 2j, then the frame is
2.
Principle of superposition is applicable when
3.
The Castigliano's second theorem can be used to compute deflections
4.
When a uniformly distributed load, longer than the span of the girder, moves from left to right,then the maximum bending moment at mid section of span occurs when the uniformly distributedload occupies
5.
For stable structures, one of the important properties of flexibility and stiffness matrices is thatthe elements on the main diagonal(i) Of a stiffness matrix must be positive(ii) Of a stiffness matrix must be negative(iii) Of a flexibility matrix must be positive(iv) Of a flexibility matrix must be negativeThe correct answer is
