Estimating and Costing

31. The area of a sloping surface of a protective embankment of mean height'd', side slops S: a and length 'L' is

1. d × d × s
2. √[d² × (ds)²]
3. L.D √(1 + s²)
4. 2 L.D√(1 + s²)

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32. The assumption on which the trapezoidal formula for volumes is based, is

1. The end sections are parallel planes
2. The mid-area of a pyramid is half the average area of the ends
3. The volume of the Prismoidal is over-estimated and hence a Prismoidal correction is applied
4. All the above

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33. The brick work is measured in sq metre, in case of

1. Honey comb brick work
2. Brick flat soling
3. Half brick walls or the partition
4. All the above

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34. The brick work is not measured in cu m in case of

1. One or more than one brick wall
2. Brick work in arches
3. Reinforced brick work
4. Half brick wall

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35. The 'centre line method' is specially adopted for estimating

1. Circular buildings
2. Hexagonal buildings
3. Octagonal buildings
4. All the above

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36. The concrete work for the following part of the building of specified thickness is measured in square metres

1. Root slabs
2. Floors
3. Wall panels
4. All the above

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37. The correct Prismoidal formula for volume is

1. D [first area + last area + Σ Even area + 2 Σ odd areas]
2. D/3 [first area + last area + 4Σ Even area + 2Σ odd areas]
3. D/3 [first area + last area + 2Σ Even area + 4Σ odd areas]
4. D/6 [first area + last area + 2Σ Even area + 4Σ odd areas]

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38. The cross-sections for a highway is taken at

1. Right angle to the centre line
2. 30 metres apart
3. Intermediate points having abrupt change in gradient
4. All the above

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39. The damp proof course (D.P.C.) is measured in

1. Cub. m
2. Sq. m
3. Metres
4. None of these

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40. The detention period in a septic tank is assumed

1. 20 minutes
2. 25 minutes
3. 30 minutes
4. 40 minutes

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