Castigliano’s first theorem is applicable_______________?
A. for statically determinate structures only
B. when the system behaves elastically
C. only when principle of superposition is valid
D. none of the above
Degree of kinematic indeterminacy of a pin-jointed plane frame is given by______________?
A. 2j – r
B. j – 2r
C. 3j – r
D. 2j + r
If in a pin-jointed plane frame (m + r) > 2j, then the frame is________________?
A. stable and statically determinate
B. stable and statically indeterminate
C. unstable
D. none of the above
A rigid-jointed plane frame is stable and statically determinate if_______________?
A. (m + r) = 2j
B. (m + r) = 3j
C. (3m + r) = 3j
D. (m + 3r) = 3j
The degree of static indeterminacy of a pin-jointed space frame is given by_________________?
A. m + r – 2j
B. m + r – 3j
C. 3m + r – 3j
D. m + r + 3j