## Monday, February 18, 2019

### Civil- Structural Analysis (Objective Questions With Answers)

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Question No. 01
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

Question No.02
Principle of superposition is applicable when
(A) Is increased
(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

Question No. 03
The Castigliano's second theorem can be used to compute deflections
(A) In statically determinate structures only
(B) For any type of structure
(C) At the point under the load only
(D) For beams and frames only

Question No. 04
When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies
(A) Less than the left half span
(B) Whole of left half span
(C) More than the left half span
(D) Whole span

Question No. 05
For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal
(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)

Question No. 06
When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would
(A) Change from compression to tension
(B) Change from tension to compression
(C) Always be compression
(D) Always be tension

Question No. 07
Which of the following methods of structural analysis is a force method?
(A) Slope deflection method
(B) Column analogy method
(C) Moment distribution method
(D) None of the above

Question No. 08
Which of the following is not the displacement method?
(A) Equilibrium method
(B) Column analogy method
(C) Moment distribution method
(D) Kani's method

Question No. 09
For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust
(A) Is increased
(B) Is decreased
(C) Remains unchanged
(D) Becomes zero

Question No. 10
The deflection at any point of a perfect frame can be obtained by applying a unit load at the joint in
(A) Vertical direction
(B) Horizontal direction
(C) Inclined direction
(D) The direction in which the deflection is required