Structural Analysis
Principle of superposition is applicable when

Material obeys Hooke's law
Deflections are linear functions of applied forces
The action of applied forces will be affected by small deformations of the structure
None of these

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Structural Analysis
The minimum horizontal distance between two parallel main reinforcing bars, is

5 mm more than nominal maximum size of the coarse aggregate
Greatest value of the above
The diameter of the bar if their diameters are same
The diameter of the longer bar if their diameters are unequal

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Structural Analysis
Pick up the correct statement applicable to cased columns.

Single I-beam or channels back with or without flange plates may be used
All of these
Single I-beam or channels back with or without flange plates may be used
The surface and edges of the steel column should be provided a concrete cover not less than 50 mm

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