Category: Structural Analysis

A. a unit force is applied at coordinate j and the displacements are calculated at all coordinates
B. a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates
C. a unit force is applied at coordinate j and the forces are calculated at all coordinates
D. a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates

i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy
ii) The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy
iii) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy
iv) The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy

The correct answer is?

A. (i) and (iii)
B. (ii) and (iii)
C. (i) and (iv)
D. (ii) and (iv)

A. 8 kN.m
B. 15 kN.m
C. 30 kN.m
D. 60 kN.m