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

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

3300 m³
3225 m³
3250 m³
3275 m³

30 D
39 D
50 D
59 D

## Estimating and Costing The area of a sloping surface of a protective embankment of mean heightâ€˜dâ€™, side slopes S: 1 and length â€˜Lâ€™ is

2 L.D âˆš(1 + sÂ²)
L.D âˆš(1 + sÂ²)
d Ã— d Ã— s
âˆš[dÂ² Ã— (ds)Â²]

## Estimating and Costing Referring of given figure, pick up the correct statement from the following:

Length of short walls in-to-in is 3.20 m
Length of long wall out-to-out is 6.80 m
All listed here
The total length of centre line of four walls is 20 m

## Estimating and Costing Berms are provided in canals if these are

Fully in embankment
Partly in excavation and partly in embankment
All of these
Fully in excavation