Structural Analysis
For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust

Remains unchanged
Is decreased
Is increased
Becomes zero

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Structural Analysis
The effective and actual lengths of a cantilever are same if continuous at the support,

With partial restraint against torsion of the support and free at the end
Unstrained against torsion at the support and free at the end
None of these
Restrained against torsion at the support and free at the end

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