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Structural Analysis

Structural Analysis
In column analogy method, the area of an analogous column for a fixed beam of span L and flexural rigidity El is taken as

L/2EI
L/4EI
L/EI
L/3EI

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Structural Analysis
The deformation of a spring produced by a unit load is called

influence coefficient
stiffness
flexibility
unit strain

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

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Structural Analysis
The degree of static indeterminacy up to which column analogy method can be used is

3
6
4
5

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Structural Analysis
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 ?

0.05 mm
5 mm
0.5 mm
0.005mm

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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)

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

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