Structural Analysis
For a symmetrical two hinged parabolic arch, if one of the supports settles horizontally, then the horizontal thrust

is decreased
becomes zero
is increased
remains unchanged

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Structural Analysis
Study the following statements.
i) The displacement method is more useful when degree of kinematic indeterminacy is greater than the degree of static indeterminacy.
ii) The displacement method is more useful when degree of kinematic indeterminacy is less than the degree of static indeterminacy.
iii) The force method is more useful when degree of static indeterminacy is greater than the degree of kinematic indeterminacy.
iv) The force method is more useful when degree of static indeterminacy is less than the degree of kinematic indeterminacy.
The correct answer is

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

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Structural Analysis
When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that

the load position should be such that the section divides it equally on both sides
the load position should be such that the section divides the load in the same ratio as it divides the span
the head of the load reaches the section
the tail of the load reaches the section

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Structural Analysis
To generate the j th column of the flexibility matrix

a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates
a unit force is applied at coordinate j and the displacements are calculated at all coordinates
a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates
a unit force is applied at coordinate j and the forces are calculated at all coordinates

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