| The principle of virtual work can be applied to elastic system by considering the virtual work of |
A) Internal forces only
B) External forces only
C) Internal as well as external forces
D) None of the above
| The degree of static indeterminacy up to which column analogy method can be used is |
A) 2
B) 3
C) 4
D) Unrestricted
| In which case are trussed portals preferred over simple portals? |
A) When they are used to span small distances
B) When they are used to span large distances
C) When they are used to span small loads
D) When they are used to span heavy loads
| In the slope deflection equations, the deformations are considered to be caused by (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)
| Principle of superposition is applicable when |
A) Deflections are linear functions of applied forces
B) Material obeys Hooke’s law
C) The action of applied forces will be affected by small deformations of the structure
D) None of the above
| Where is point of inflections of vertical members in a portal frame located at? |
A) At centre
B) Depends upon magnitude of load
C) Depends upon relative lengths of vertical member
D) There is no inflection point in vertical members
| While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of |
A) Zero length
B) Infinite length
C) Zero moment of inertia
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
| In which of the following cases, Castigliano’s theorem applicable? |
A) Yielding support, non-linear elastic material
B) Non-yielding support, linear elastic material
C) Yielding support, linear elastic material
D) Non-yielding support, non-linear elastic material
| For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust |
A) Is increased
B) Is decreased
C) Remains unchanged
D) Becomes zero
