Estimating and Costing
In long and short wall method of estimation, the length of long wall is the centre to centre distance between the walls and

One fourth breadth of wall on each side
Half breadth of wall on each side
Breadth of the wall
None of these

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Estimating and Costing
While estimating a reinforced cement structure, the omitted cover of concrete is assumed

At the end of reinforcing bar, not less than 25 mm or twice the diameter of the bar
All of these
In thin slabs, 12 mm minimum or diameter of the bar whichever is more
For reinforcing longitudinal bar in a beam 25 mm minimum or diameter of the largest bar which is more

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