Test 23 - Earthwork Computation Fundamentals

Question 1 ప్రశ్న 1

In earthwork computation for a proposed road, which statement correctly distinguishes existing ground level (GL) from formation level (FL)?

A Ground level is the designed finished level, while formation level is always the natural rock level. B Ground level represents the existing ground elevation, while formation level represents the specified elevation to which earthwork is to be brought. C Ground level and formation level must always be identical at every chainage. D Formation level indicates only the depth of excavation and cannot be expressed as a reduced level.

Question 2 ప్రశ్న 2

At a particular chainage, the existing ground level is RL 104.65 m and the proposed formation level is RL 102.90 m. What type and depth of earthwork are required at the centre line?

A Filling of 1.75 m. B Cutting of 2.25 m. C Cutting of 1.75 m. D Filling of 2.25 m.

Question 3 ప్రశ్న 3

At a proposed embankment section, the existing ground level is RL 99.60 m and the formation level is RL 101.25 m. What is the required centre-line height of filling?

A 1.65 m. B 0.65 m. C 2.65 m. D 0.825 m.

Question 4 ప్రశ్న 4

Two successive survey stations on a pipeline alignment are marked at chainages 0+375 and 1+025. What is the horizontal chainage interval between these stations?

A 400 m. B 550 m. C 1,400 m. D 650 m.

Question 5 ప్రశ్న 5

Which statement correctly explains the respective purposes of longitudinal sections and cross sections in earthwork quantity estimation?

A A longitudinal section gives only the soil classification, while a cross section gives only the construction rate. B Longitudinal and cross sections represent the same geometric plane and are interchangeable. C A longitudinal section shows ground and formation profiles along the alignment, while cross sections represent transverse ground and formation geometry at selected chainages. D Cross sections are unnecessary whenever the centre-line formation level is known.

Question 6 ప్రశ్న 6

The proposed formation level at chainage 0+100 is RL 108.40 m. The formation falls uniformly at a gradient of 1 in 250 towards chainage 0+350. What is the proposed formation level at chainage 0+350?

A RL 107.40 m. B RL 109.40 m. C RL 108.15 m. D RL 106.90 m.

Question 7 ప్రశ్న 7

At chainage 0+000, the ground level is RL 102.40 m and the formation level is RL 101.60 m. At chainage 0+040, the ground level is RL 102.00 m and the formation level is RL 101.80 m. Which pair correctly gives the centre-line cutting depths at these two stations?

A 0.80 m filling and 0.20 m cutting. B 0.80 m cutting and 0.20 m cutting. C 0.40 m cutting and 0.60 m filling. D 1.60 m cutting and 1.80 m cutting.

Question 8 ప్రశ్న 8

A transverse survey across a proposed road formation shows that existing ground lies above formation on one side and below formation on the other. Which principle should be followed when computing the cross-sectional earthwork?

A Treat the entire section as cutting whenever the centre-line ground is above formation. B Treat the entire section as filling whenever one edge requires embankment. C Subtract the filling area from the cutting area and record only the positive difference as excavation. D Identify the transition point and compute cutting and filling areas separately within the same cross section.

Question 9 ప్రశ్న 9

A trench has a rectangular cross section with vertical sides, a uniform bottom width of 5.50 m and an excavation depth of 1.80 m. Assuming a level ground surface and no additional excavation width, what is its cross-sectional cutting area?

A 7.30 m2. B 9.90 m2. C 12.60 m2. D 19.80 m2.

Question 10 ప్రశ్న 10

A road cutting has a formation width of 8.00 m and a centre-line depth of 2.00 m on level transverse ground. The cutting side slopes are 1.5 horizontal to 1 vertical on BOTH sides. What is the total cross-sectional area of cutting?

A 16.00 m2. B 19.00 m2. C 22.00 m2. D 28.00 m2.

Question 11 ప్రశ్న 11

A symmetrical road embankment is constructed over level transverse ground with a formation width of 7.00 m and a filling height of 1.50 m. Both embankment side slopes are 2 horizontal to 1 vertical. What is the total width between the toes of the embankment?

A 10.00 m. B 11.50 m. C 12.00 m. D 13.00 m.

Question 12 ప్రశ్న 12

A trapezoidal earthwork cross section has a bottom width of 6.00 m, a top width of 14.00 m and a vertical depth of 2.00 m. What is its cross-sectional area?

A 20.00 m2. B 16.00 m2. C 28.00 m2. D 40.00 m2.

Question 13 ప్రశ్న 13

A 6.00 m wide earthwork strip has vertical lateral boundaries. At transverse offsets of 0 m, 3 m and 6 m, the measured cutting depths below a horizontal formation line are 0.60 m, 1.20 m and 0.80 m respectively. Assuming the existing ground varies linearly between successive offsets, what is the total cutting area across the strip?

A 4.80 m2. B 6.60 m2. C 5.70 m2. D 7.20 m2.

Question 14 ప్రశ్న 14

Two consecutive earthwork cross sections are 25.00 m apart. Their cutting areas are 12.00 m2 and 18.00 m2 respectively. Using the average-end-area method, what is the estimated volume of cutting between them?

A 300 m3. B 375 m3. C 450 m3. D 750 m3.

Question 15 ప్రశ్న 15

Earthwork cross-sectional areas at chainages 0+000, 0+020 and 0+040 are 10 m2, 14 m2 and 18 m2 respectively. Using the average-end-area method separately for the two 20 m intervals, what is the total estimated earthwork volume?

A 420 m3. B 480 m3. C 640 m3. D 560 m3.

Question 16 ప్రశ్న 16

For a 30.00 m long earthwork reach, the cross-sectional area at the beginning is 12 m2, the area at the exact midpoint is 19 m2 and the area at the end is 24 m2. What is the earthwork volume computed using the prismoidal formula?

A 560 m3. B 540 m3. C 570 m3. D 600 m3.

Question 17 ప్రశ్న 17

A road embankment has a constant formation width of 8.00 m, side slopes of 1 horizontal to 1 vertical on both sides, and filling heights of 1.00 m and 3.00 m at two sections 20.00 m apart. Assuming the transverse ground is level at each section and the longitudinal filling depth varies linearly, what volume is obtained by the MID-SECTIONAL AREA method?

A 380 m3. B 400 m3. C 420 m3. D 440 m3.

Question 18 ప్రశ్న 18

A road embankment has a formation width of 8.00 m, symmetrical side slopes of 1 horizontal to 1 vertical and filling heights of 1.00 m and 3.00 m at the ends of a 20.00 m reach. The transverse ground is level at both sections. What volume is obtained by the AVERAGE-END-AREA method?

A 400 m3. B 410 m3. C 420 m3. D 440 m3.

Question 19 ప్రశ్న 19

A proposed horizontal formation line crosses an irregular transverse ground profile. Over the first 2.00 m of a surveyed strip, the cutting depth decreases linearly from 0.80 m to zero. Over the next 3.00 m, the filling depth increases linearly from zero to 0.60 m. The strip boundaries are vertical and exterior side slopes are excluded. What are the separate cutting and filling areas?

A Cutting 0.80 m2 and filling 0.90 m2. B Cutting 0.90 m2 and filling 0.80 m2. C Cutting 1.60 m2 and filling 1.80 m2. D Cutting 1.70 m2 and filling zero.

Question 20 ప్రశ్న 20

Earthwork cross-sectional areas at chainages 0+000, 0+030 and 0+075 are 8 m2, 12 m2 and 16 m2 respectively. Using the average-end-area method and the ACTUAL spacing of each interval, what is the total estimated volume?

A 750 m3. B 840 m3. C 1,050 m3. D 930 m3.

Question 21 ప్రశ్న 21

A straight embankment of uniform cross section is 40.00 m long. Its formation width is 7.00 m, filling height is 1.50 m, and both side slopes are 1 horizontal to 1 vertical over level transverse ground. What is its theoretical compacted earthwork volume?

A 420 m3. B 480 m3. C 510 m3. D 600 m3.

Question 22 ప్రశ్న 22

A road cutting is formed on level transverse ground with a bottom formation width of 5.00 m and a vertical cutting depth of 1.50 m. The side slopes on both sides are 1 vertical to 2 horizontal. What is the total top width of the cutting between the ground intercepts?

A 8.00 m. B 11.00 m. C 9.50 m. D 13.00 m.

Question 23 ప్రశ్న 23

A road excavation produces 125 m3 of usable earth measured in situ. Under the expressly stated project assumption, every 1.00 m3 of usable in-situ excavated soil yields 0.80 m3 of completed compacted embankment. If the required completed embankment volume is 110 m3, what is the shortfall expressed as COMPACTED fill volume?

A 5 m3. B 15 m3. C 20 m3. D 10 m3.

Question 24 ప్రశ్న 24

At chainage 0+000, the existing ground level is RL 102.60 m and the formation level is RL 101.80 m. At chainage 0+050, the ground level is RL 101.00 m and the formation level is RL 102.20 m. Assuming both ground and formation levels vary LINEARLY between these stations, at what chainage does the centre-line cutting change to filling?

A 0+020. B 0+025. C 0+030. D 0+040.

Question 25 ప్రశ్న 25

A road section has a cutting area of 20 m2 at chainage 0+000, zero earthwork area at chainage 0+020, and a filling area of 16 m2 at chainage 0+040. The cutting and filling portions are assumed to vary sufficiently for separate average-end-area calculations over their respective 20 m reaches. What are the estimated cutting and filling volumes respectively?

A 360 m3 cutting and zero filling. B 200 m3 cutting and 160 m3 filling. C 160 m3 cutting and 200 m3 filling. D 40 m3 net cutting only.

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