Structural Analysis
If the specified thickness of a footing is 100 cm, the depth of the form work may be tolerated from

-5 mm to +5 mm
-4 mm to +4 mm
-3 mm to +3 mm
-2 mm to +2 mm

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

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