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
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 where m is number of members, r is reaction components and j is number of joints
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 where m is number of members, r is reaction components and j is number of joints
A simply supported beam deflects by 5 mm when it is subjected to a concentrated load of 10 kN at its centre. What will be deflection in a 1/10 model of the beam if the model is subjected to a 1 kN load at its centre ?
(A) 5 mm
(B) 0.5 mm
(C) 0.05 mm
(D) 0.005mm
The fixed support in a real beam becomes in the conjugate beam a___________________?
(A) roller support
(B) hinged support
(C) fixed support
(D) free end
Which of the following methods of structural analysis is a displacement method ?
(A) moment distribution method
(B) column analogy method
(C) three moment equation
(D) none of the above
Effects of shear force and axial force on plastic moment capacity of a structure are respectively to_________________?
(A) increase and decrease
(B) increase and increase
(C) decrease and increase
(D) decrease and decrease
If in a rigid-jointed space frame, (6m + r) < 6j, then the frame is_______________?
(A) unstable
(B) stable and statically determinate
(C) stable and statically indeterminate
(D) none of the above
Which of the following is not the displacement method ?
(A) Equilibrium method
(B) Column analogy method
(C) Moment distribution method
(D) Kani’s method
When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when________________?
(A) the centre of gravity of the load system is midway between the centre of span and wheel load under consi-deration
(B) the centre of span is midway between the centre of gravity of the load system and the wheel load under consideration
(C) the wheel load under consideration is midway between the centre of span and the centre of gravity of the load system
(D) none of the above