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Structural Analysis

Structural Analysis
Degree of static indeterminacy of a rigid-jointed plane frame having 15 members, 3 reaction components and 14 joints is

9
8
7
6

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Structural Analysis
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
The correct answer is

(ii) and (iv)
(i) and (iii)
(ii) and (iii)
(i) and (iv)

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Structural Analysis
The number of independent equations to be satisfied for static equilibrium in a space structure is

8
6
9
7

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Structural Analysis
While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of

infinite length
None of these
zero moment of inertia
zero length

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Structural Analysis
If in a pin-jointed plane frame (m + r) > 2j, then the frame is (Where ‘m’ is number of members, ‘r’ is reaction components and ‘j’ is number of joints)

Unstable
Stable and statically indeterminate
None of these
Stable and statically determinate

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Structural Analysis
Castigliano’s first theorem is applicable

when the system behaves elastically
None of these
for statically determinate structures only
only when principle of superposition is valid

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MORE MCQ ON Structural Analysis

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