1. Compensating errors that occur in chaining is proportional to
(a) L
(b) √L
(c)1/L
(d)1/√L
Answer: (b)
where L = Length of the line
2. An obstacle which obstructs both chaining & ranging is a -
(a) river (b) lake (c) building
(d) hillock
Answer: (c)
3. If the length of chain along a slope 0° is 1, the required slope correction is -
(a) 1 cos² θ/2 (b) 21sin²Î¸/2
(c) 21cos²Î¸/2
(d) none of the aboveAnswer: (d)
4. In a metric chain, 2m length is divided into -
(a) 5 links (b) 10 links
(c) 20 links (d) 30 links
Answer: (b)
5. For accurate measurement of distances the instruments used is -
(a) chain (b) steel tape
(c) metallic tape (d) invar tape
Answer : (d)
6. The distance between two consecutive talies in a metric chain is
(a) 1m (b) 2m (c) 5m (d) 10m
Answer : (c)
7. The sag co-reaction of the tape is always -
(a) Positive (b) negative
(c) either positive or negative
(d) none of these
Answer: (b)
8. Chain survey is suitable in --
(a) hilly country
(b) flat area
(c) roaded country
(d) Country with large area & details
Answer: (b)
9. A 20 meter chain is divided into -
(a) 50 links (b) 100 links
(c) 200 links (d) 150 links
Answer: (b)
10. The sag correction of the tape is –
(a) always positive
(b) always negative
(c) may be positive or negative
(d) none of these
Answer: (b)
11. The preliminary inspection of the area to be surveyed is known as –
(a) primary survey
(b) rough survey
(c) location survey
(d) reconnaissance survey
Answer: (d)
12. Building is such an obstacle which is an example of the case –
(a) when chaining is free but vision obstructed
(b) when chaining is obstructed but vision free
(c) when chaining vision are both obstructed
(d) none of the above
Answer:(c)
13. The limiting length of an offset should be –
(a) 5m (b) 15m (c) 30m (d) 50m
Answer: (b)
14. Number of links per metre length of a chain are –
(a) 2 (b) 5 (c) 10 (d) 20
Answer :(b)
15. A well conditioned triangle does not have any angle less than -
(a) 20° (b) 30° (c) 40° (d) 60°
Answer:(b)
16. In a metric chain 1 metre length is divided into -
(a) 5 links
(b) 10 links
(c)15 links
(d) 20 lin
Answer : (a)
17. The total number of links in a 30m chain is -
(a) 100 (b) 200
(c) 150 (d) 50
Answer: (c)
18. A 20m chain is divided into -
(a) 50 links (b) 100 links
(c) 200 links (d) 50 links
Answer :(b)
19. The relative closing error should not exceed be -
(a) 1/450
(b) 1/350m
(c) 1/600m
(d) 1/550m
Answer: (c)
20. A ideal conditioned triangle does not have any angle less than -
(a) 20° (b) 30° (c) 450 (d) 60°
Answer: (b)
21. Chain survey is well adopted for –
(a) Small areas in open ground
(b) Small area in crowded ground
(c) large areas with simple details
(d) large areas with difficult details
Answer: (a)
22. On a diagonal scale it is possible to read -
(a) one dimensions
(b) two dimensions
(c) three dimensions
(d) four dimensions
Answer :(c)
23. If θ be the angle of slope and I the sloping distance, slope correction is given by -
(a) l(l – sinθ ), (b) l(l - cosθ),
(c) l(l – secθ ), (d) l(l – tanθ),
Answer: (b)
24. The numbers of minimum rod needed for direct ranging -
(a) 1 (b) 2 (c) 3 (d) 4
Answer: (c)
25. Offsets are —
(a) Chain lines out of alignment
(b) small measurements from chain line
(c) measurements taken in chain surveying
(d) none of the above
Answer: (b)
(c) 30 m (d) 20m
27. The error due to bad ranging is –
(a) compensation
28. As per Indian standard the total number of links in a 30 m chain should be –
(a) 100 (b) 150 (c) 300 (d) 75
Answer: (b)
29. The longest chain line passing through the center of the area is known as –
(a) Base line (b) Tie line
(c) Check line (d) all of the
above
Answer: (d)
31. The length of the ranging rod should be –
(a) 1.5 to 2 m
32. The principal of optics used in construction of an optical square is –
(c) Refraction
Answer: (d)
(c) Sextant
Answer: (c)
34. Geodimeter is an instrument used for measurement of –
Answer: (c)
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