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

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

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Estimating and Costing
In the mid-section formula

All of these
The volume of the earth work is calculated by multiplying the mid-section area by the distance between the two original sections
The area of mid-sections is calculated by using mean depth
The mean depth is the average of depths of two consecutive sections

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Estimating and Costing
Pick up the correct statement regarding the centre line method of estimating a building

The centre line is worked out separately for different sections of walls of a building
All of these
The centre line length is reduced by half the layer of main wall joining the partition wall
Product of the centre line of the walls and area of cross-section of any item, gives total quantity of the item

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