Course Syllabus
Click to Expand: Full Syllabus (BOT-H-CC12-5-Th)
Semester V (Core)
GEOG-H-CC12-5-Th – Thematic Mapping and Surveying – 75 Marks / 3 Credits
- 1. Concepts of rounding and scientific notation, logarithm and anti-logarithm, natural and log scales. [4]
- 2. Preparation and interpretation of geological maps. [5]
- 3. Preparation and interpretation land use land cover maps. [5]
- 4. Preparation and interpretation of socio-economic maps. [5]
- 5. Principal national agencies producing thematic maps in India: NATMO, GSI, NBSS&LUP, NHO, and NRSC / Bhuvan. [4]
- 6-10. Basic concepts of surveying and survey equipment: Prismatic compass, Dumpy level, Theodolite, Abney level, Total Station & Echosounder. [22]
Previous Year Questions
2025
GEOGRAPHY — HONOURS
Paper : DSCC-12
(Thematic Mapping and Surveying)
Full Marks : 75
Category - A
Answer any ten questions (each within 50 words).
2 × 10
1. Round each of the following numbers to the indicated accuracy:
(a) 56.7 (nearest unit), (b) 259.66 (nearest tenth), (c) 588 (nearest hundred), (d) 0.0568 (nearest thousandth).
(a) 56.7 (nearest unit), (b) 259.66 (nearest tenth), (c) 588 (nearest hundred), (d) 0.0568 (nearest thousandth).
2. Express each of the following numbers without using powers of 10:
(a) 8.923 × 105, (b) 9.52 × 10-3, (c) 1.86 × 100, (d) 20,000 × 10-5.
(a) 8.923 × 105, (b) 9.52 × 10-3, (c) 1.86 × 100, (d) 20,000 × 10-5.
3. What does log 3 mean? What is the antilog of 4?
4. What is the utility of log scale over natural scale?
5. What is the line of unconformity?
6. What is the use of a prism in a Prismatic compass?
7. Prove that difference between the fore and back bearing is 180°.
8. What is true dip and apparent dip?
9. Differentiate between surveying and levelling.
10. What is the difference between land use and land cover?
11. What is echo reflection?
12. Which diagrams/maps will be appropriate to represent the following socio-economic characteristics?
(a) age-sex composition
(b) occupational structure
(c) number of occupied residential houses
(d) decadal growth
(a) age-sex composition
(b) occupational structure
(c) number of occupied residential houses
(d) decadal growth
13. State the full forms and functions of the following national agencies:
(a) NATMO (b) NBSSUP.
(a) NATMO (b) NBSSUP.
14. An observer is 28.5 metres away from a tower. The angle of elevation of the top of the tower is 45°. What is the height of the tower?
Category - B
Answer any five questions (each within 125 words).
5 × 5
15. What are true meridian and magnetic meridian? Explain with the help of an illustration. Convert the following Forward Bearings to Backward Bearings:
(a) FB of AB = 310°30'
(b) FB of BC = 145°15'
(c) FB of CD = 65°45'
(d) FB of DA = 223°30' 3+2
(a) FB of AB = 310°30'
(b) FB of BC = 145°15'
(c) FB of CD = 65°45'
(d) FB of DA = 223°30' 3+2
16. Explain how unconformities are identified on a geological map. How are sills and dykes represented on a geological map? Use diagrams if necessary. 2+3
17. What is closing error? How is it corrected? 2+3
18. Prepare a proper field book and compute the reduced levels of each station on the basis of the given data. Carry out arithmetic check.
Interval 5 metres, Bench Mark at A = 20 metres. 4+1
| Station | A | B | C | D | E | F | G | H |
|---|---|---|---|---|---|---|---|---|
| Staff Reading (m) | 1.2 | 1.1 | 1.2 | 1.0 | 0.8 | 0.9 | 1.0 | 1.1 |
19. What are the basic purposes of using Total Station and Echosounder? 3+2
20. Calculate the height of the object above surface by Theodolite:
5
| Instrument at | Object | Face | Vertical Angle | Remarks | |
|---|---|---|---|---|---|
| A | O | L | 23°32' | 23°34' | Height of instrument at A = 1.45 m |
| R | 23°36' | 23°38' | Distance between instrument and base ofthe object = 12.8 m | ||
21. (a) Explain the use of Abney Level.
(b) Mention the parts of an Abney Level.
(c) What is the smallest accurate reading that can be measured? 2+2+1
(b) Mention the parts of an Abney Level.
(c) What is the smallest accurate reading that can be measured? 2+2+1
Category - C
Answer any two questions (each within 500 words).
15 × 2
22. What is socio-economic data? Discuss with suitable examples and diagrams, the different methods of representing socio-economic data. 3+12
23. The following consecutive readings were taken with a dumpy level at 30 m interval along a line XY: 3.865, 3.762, 3.453, 2.987, 1.789, 0.854, 3.790, 3.561, 3.112, 2.569, 1.762, 1.111, 1.023, 0.986 and 0.855. The level was shifted after 5th and 11th readings. RL of first station is 32 m.
(a) Enter the readings on a neatly drawn field book
(b) Calculate the RLs of all stations and check
(c) Calculate the gradient of the line XY. 5+7+3
(a) Enter the readings on a neatly drawn field book
(b) Calculate the RLs of all stations and check
(c) Calculate the gradient of the line XY. 5+7+3
24. A and B are two instrument stations 15 mts apart. P is the object. At A (face left), VC & VD = 11°20'; (face right), VC & VD = 11°24'. At B (face left), VC & VD = 17°42'; (face right), VC & VD = 17°40'. Height of instrument at A = 1.30 m, B = 1.50 m. RL of A is 50 m. Calculate height of P above collineation, above MSL, and distances.
(a) height of P above level of collineation
(b) height of P above MSL
(c) horizontal distance belween A and P
(d) slanting distance between A and P.7+2+3+3
(a) height of P above level of collineation
(b) height of P above MSL
(c) horizontal distance belween A and P
(d) slanting distance between A and P.7+2+3+3
25. The following are the bearing of lines of a closed traverse which is done in clockwise direction :
(a) Correct the bearing for local attraction.
(b) Calculate the included angles of the traverse.
(c) Carry on checking to verify if sum of interior angles is correct. 6+6+3
| Line | Fore bearing | Back bearing |
|---|---|---|
| AB | 40°00' | 219°00' |
| BC | 95°30' | 276°30' |
| CD | 208°30' | 25°30' |
| DA | 282°30' | 104°30' |
(b) Calculate the included angles of the traverse.
(c) Carry on checking to verify if sum of interior angles is correct. 6+6+3
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