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

None of these
infinite length
zero length
zero moment of inertia

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Structural Analysis
When a series of wheel loads crosses a simply supported girder, the maximum bending moment under any given wheel load occurs when

The centre of gravity of the load system is midway between the centre of span and wheel load under consi-deration
The wheel load under consideration is midway between the centre of span and the centre of gravity of the load system
None of these
The centre of span is midway between the centre of gravity of the load system and the wheel load under consideration

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Structural Analysis
For under water concreting.

At least 10 percent more cement is required as compared to dry conditions
All of these
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

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