Surveying problems
- 1. Chain surveying is well adopted for
Options- A. small areas in open ground
- B. small areas with crowded details
- C. large areas with simple details
- D. large areas with difficult details. Discuss
Correct Answer: small areas in open ground
- 2. The line of collimation method of reduction of levels, does not provide a check on
Options- A. intermediate sights
- B. fore sights
- C. back sights
- D. reduced levels. Discuss
Correct Answer: intermediate sights
- 3. Short offsets are measured with
Options- A. an ordinary chain
- B. an invar tape
- C. a metallic tape
- D. a steel tape. Discuss
Correct Answer: an ordinary chain
- 4. The approximate formula for radial or perpendicular offsets from the tangent, is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 5. Correction per chain length of 100 links along a slope having a rise of 1 unit in n horizontal units, is
Options- A.
- B. 100 n2
- C.
- D.
.
Discuss
Correct Answer:
- 6. Which one of the following statements is correct?
Options- A. when the axes of rotation of the graduated circle and the verniers are not coincident, the instrument possesses eccentricity
- B. the mean of the readings of the two verniers gives correct reading free from the eccentricity
- C. one vernier may be used if the readings of two verniers differ by a constant
- D. all the above. Discuss
Correct Answer: all the above.
- 7. Prolongation of chain line across an obstruction in chain surveying, is done by
Options- A. making angular measurements
- B. drawing perpendiculars with a chain
- C. solution of triangles
- D. all the above. Discuss
Correct Answer: drawing perpendiculars with a chain
- 8. Bergchrund is a topograhical feature in
Options- A. plains
- B. water bodies
- C. hills
- D. glaciated region Discuss
Correct Answer: water bodies
- 9. To avoid large centering error with very short legs, observations are generally made
Options- A. to chain pins
- B. by using optical system for centering the theodolite
- C. to a target fixed on theodolite tripod on which theodolite may be fitted easily
- D. all the above. Discuss
Correct Answer: to a target fixed on theodolite tripod on which theodolite may be fitted easily
- 10. The line of sight is kept as high above ground surface as possible to minimise the error in the observed angles due to
Options- A. shimmering
- B. horizontal refraction
- C. vertical refraction
- D. both shimmering and horizontal refraction. Discuss
Correct Answer: both shimmering and horizontal refraction.
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