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

Remains unchanged
Becomes zero
Is increased
Is decreased

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

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

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Structural Analysis
For under water concreting.

The volume of coarse aggregates shall not be less than one and half times and not more than twice that of fine aggregate
De-watering by pumping is not done or until 24 hours thereafter
At least 10 percent more cement is required as compared to dry conditions
All of these

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