Structural Analysis

Structural Analysis

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

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

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 negative

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

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) bending moment
ii) shear force
iii) axial force

A. only (i)
B. (i)and(ii)
C. (ii) and (iii)
D. (i), (ii) and (iii)

A. 1
B. 2
C. 3
D. 6

A. m + r + 2j
B. m – r + 2j
C. m + r – 2j
D. m + r – 3j

A. 2
B. 3
C. 6
D. 8

A. three linear movements
B. two linear movements and one rotation
C. one linear movement and two rotations
D. three rotations

A. (m + r)<2j
B. m + r = 2j
C. (m + r)>2j
D. none of the above

where m is number of members, r is reaction components and j is number of joints