Estimating and Costing
While estimating the qualities for the construction of a building, the correct metric unit is

Cubic metre for area
Liter for capacity
Square meters for volume
Meter for length

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Estimating and Costing
Pick up the correct statement in case of water supply.

Cutting through walls and floors are included with the item
Pipes are classified according to their sizes and quality
Pipes laid in trenches and pipes fixed to walls are measured separately
All of these

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Estimating and Costing
The assumption on which the trapezoidal formula for volumes is based, is

All listed here
The volume of the Prismoidal is over-estimated and hence a Prismoidal correction is applied
The end sections are parallel planes
The mid-area of a pyramid is half the average area of the ends

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