1. JNTUW
ORLD
Code No: 07A60105 R07 Set No. 2
III B.Tech II Semester Examinations,December-January, 2011-2012
ESTIMATING AND COSTING
Civil Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. Explain the following:
(a) administrative approval.
(b) Expenditure sanction.
(c) Technical sanction. [16]
2. List out duties and liabilities of the following:
(a) Owner.
(b) Engineer. [16]
3. Explain open specifications along with its advantages and disadvantages. [16]
4. Write unit of measurement for the following cases.
(a) Earth work in excavation.
(b) Clearing of shrubs, small trees.
(c) Earth work in filling.
(d) Surface dressing.
(e) Boulder work.
(f) Dressed stone work as in chajjas.
(g) Lime terracing on roof.
(h) Madras terrace roofing. [16]
5. (a) What do you mean by spacer bars in beams
(b) Explain the following along with neat sketches
i. Lap length
ii. End anchorage. [8+8]
6. Explain the following methods along with an example.
(a) Straight line method
(b) Declining balance method. [16]
7. (a) Describe the procedure for calculation of earthwork in hill road.
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2. JNTUW
ORLD
Code No: 07A60105 R07 Set No. 2
(b) Calculate the area of the side slopes of portion of a bank for a length of 200
meter the heights of banks at the two ends being 2.50m and 3.50m and the
ratio of the side slope is 2:1. If the side slopes are to be provided with 15cm
thick stone pitching, calculate the cost of pitching at the rate of Rs.150/- per
cu.m. [8+8]
8. Describe the procedure for the calculation of rate per unit cu.m of cement concrete
1:2:4 with stone ballast 40 mm. [16]
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3. JNTUW
ORLD
Code No: 07A60105 R07 Set No. 4
III B.Tech II Semester Examinations,December-January, 2011-2012
ESTIMATING AND COSTING
Civil Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. Draw the tabular form for the calculation of earthwork with the following methods
(a) Mid - ordinate method and
(b) Prismoidal formula method. [16]
2. Enumerate different methods for estimating building works along with a suitable
example. [16]
3. Explain the following:
(a) Years purchase method.
(b) Sinking fund method. [16]
4. Write a short note on the following:
(a) Informal tender.
(b) Sale of tender papers.
(c) Unbalanced tender. [16]
5. Describe the procedure for the calculation of rate per unit cu.m of Half brick wall
(10cm thick partition wall) with 1:3 cement mortar. [16]
6. Give the detailed specifications of the following items of works.
(a) Reinforced cement concrete
(b) Damp proof course 2.5 cm. [8+8]
7. Explain the following general items of work involved in the estimation for a building
and its process calculation.
(a) Flooring for ground floor
(b) White washing or colour washing
(c) Cement or lime concrete in foundation
(d) Damp proof course. [16]
8. Prepare a schedule of bars for the RCC lintel shown in the figure 1 assuming bearing
of the lintel be 25 cm on walls at each side. Weight of 10mm diameter bar is 0.62
kg/m and 6 mm diameter bar is 0.22 kg/m. [16]
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4. JNTUW
ORLDFigure 1
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Code No: 07A60105 R07 Set No. 4
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5. JNTUW
ORLD
Code No: 07A60105 R07 Set No. 1
Figure 1:
III B.Tech II Semester Examinations,December-January, 2011-2012
ESTIMATING AND COSTING
Civil Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. Describe the procedure for the calculation of rate per unit sq.m of the following
items
(a) 2.5 cm cement concrete floor 1:2:4
(b) 2.5 cm cement concrete floor 1:11/2 :4 . [16]
2. Give the detailed specifications of the following items of works.
(a) Steel doors and windows.
(b) Decorative waterproof cement coating. [8+8]
3. Explain the following general items of work involved in the estimation for a building
along with the process of calculations.
(a) Earthwork in excavation.
(b) Earthwork in filling.
(c) Brick flat soling.
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(d) Cement concrete in foundation.
(e) Masonry work in foundation.
(f) Damp proof course.
(g) Masonry work in superstructure.
(h) 10 cm thick brickwork. [16]
4. Write a short note on the following:
(a) Opening of tenders
(b) Comparative statement of tenders
(c) Global tender. [16]
5. (a) What are the main functions of an abstract
(b) What is the data required for preparing detailed estimates. [8+8]
6. Explain the following methods along with an example.
(a) Straight line method
(b) Quantity survey method. [16]
7. Prepare a detailed estimate for earthwork for a portion of a road from the following
data.
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6. JNTUW
ORLD
Code No: 07A60105 R07 Set No. 1
Distance in m RL of ground RL of the formation
0 114.50 115.00
100 114.75
200 115.25
300 115.20 Upward gradient 1 in 200 up to 600 m
400 116.10
500 116.85
600 118.00
700 118.25
800 118.10
900 117.80
1000 117.75 Downward gradient 1 in 400
1100 117.90
1200 117.50
Formation width of road is 8 m, side slopes are 2:1 in banking and 11/2 :1 in cutting.
Draw L-section and cross sections. [16]
8. Prepare a schedule of bars for the RCC lintel shown in the figure 2 assuming bearing
of the lintel be 15 cm on walls at each side. Weight of 10mm diameter bar is 0.62
kg/m and 6 mm diameter bar is 0.22 kg/m. [16]
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6
Figure 2
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7. JNTUW
ORLD
Code No: 07A60105 R07 Set No. 3
Figure 2:
III B.Tech II Semester Examinations,December-January, 2011-2012
ESTIMATING AND COSTING
Civil Engineering
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. List and explain any eight general items of work involved in the estimation for a
building along with the process of calculations. [16]
2. Describe the step by step procedure for inviting of tender for design and construc-
tion. [16]
3. Give the detailed specifications of the following items of works.
(a) Reinforced brickwork.
(b) Plastering cement mortar. [8+8]
4. Draw reinforcement details along with curtailment lengths in the following slabs.
(a) Simply supported.
(b) Continuous over several spans. [8+8]
5. Describe the procedure for the calculation of rate per unit sq.m of 6 mm thickness
plastering, 12 mm plastering thickness and 20 mm plastering thickness. [16]
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6. A building is situated by the side of a main road of Hyderabad city on a land of
600 sq.m. The built up portion in 22m × 17m. The building is first class type
and provided with water supply, sanitary and electric fittings, and the age of the
building is 30 years. Workout the valuation of the property. Assume plinth area
rate is Rs.200.00 and cost of land as Rs.6000 per sq.m. [16]
7. Estimate the cost of earthwork for apportion of road for 400m length from the fol-
lowing data. Formation width of the road is 9 meter. Side slopes are 2:1 in banking
2:1 in cutting. [16]
7
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8. JNTUW
ORLD
Code No: 07A60105 R07 Set No. 3
Station Distance in meter RL of ground RL of formation
25 1000 51.00 52
26 1040 50.90
27 1080 50.50
28 1120 50.80
29 1160 50.60
30 1200 50.70
31 1240 51.20 Downward gradient of 1 in 200
32 1280 51.40
33 1320 51.30
34 1360 51.00
35 1400 50.60
8. Prepare a preliminary estimate for a framed four storied office building having
a carpet area of 400 sq m for each floor. Assume areas occupied by corridor,
verandah, lavatories, staircase etc as 25% of built up area and that occupied by
walls and columns as 8.5% of the same. The following details may be sued for
estimation
(a) Built-up area rate for ground floor (excluding foundation) = Rs1,500/- per sq
m
(b) Built-up area rate for 1st and 2nd floor = Rs1,650/- per sq m
(c) Built-up area rate for 3rd floor = Rs1,800/- per sq m
(d) Extra for foundation = 20% of superstructure cost
(e) Extra for special architectural treatment = 1% of building cost
(f) Extra for water supply and sanitary = 7% of building cost
(g) Extra for electrical installation = 8% of building cost
(h) Extra for work charge establishment = 10% of overall cost
(i) Extra for other source = 5% of building cost. [16]
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