Discussion
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- Question
The orthogonal projection of the perspective centre on a tilted photograph, is called
Options- A. nadir
- B. isocentre
- C. principal point
- D. plumb point.
- Correct Answer
- principal point
- 1. The position of the sun when its north declination is maximum is known as
Options- A. vernal equinox
- B. Autumnal equinox
- C. summer solstice
- D. winter solstice. Discuss
- 2. The maximum error in radial line assumption, is
Options- A.
- B.
- C.
- D.
Discuss
- 3. The latitude of the observer's position, is
Options- A. elevation of the elevated pole
- B. declination of the observer's zenith
- C. angular distance along the observer's meridian between equator and the observer
- D. north or south according as the observer is north of equator or south of equator
- E. all the above. Discuss
- 4. The average eye base is assumed as
Options- A. 58 mm
- B. 60 mm
- C. 62 mm
- D. 64 mm
- E. 72 mm. Discuss
- 5. If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be
Options- A. 1000 km
- B. 800 km
- C. 600 km
- D. 500 km
- E. 400 km. Discuss
- 6. The station where observations are not made, but the angles at the station are used in triangulation series, is known as
Options- A. satellite station
- B. subsidiary station
- C. pivot station
- D. main station. Discuss
- 7. If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be
Options- A. 1 cm
- B. 2 cm
- C. 3 cm
- D. 4 cm
- E. 5 cm. Discuss
- 8. The following points form a pair of homologous points :
Options- A. Photo principal point and ground principal point
- B. Photo isocentre and ground isocentre
- C. Photo plumb point and ground plumb point
- D. all the above. Discuss
- 9. At eastern elongation, the pole star moves
Options- A. eastward
- B. westward
- C. northward
- D. southward. Discuss
- 10. An aerial photograph may be assumed as
Options- A. parallel projection
- B. orthogonal projection
- C. central projection
- D. none of these. Discuss
Advanced Surveying problems
Search Results
Correct Answer: summer solstice
Correct Answer:
Correct Answer: all the above.
Correct Answer: 64 mm
Correct Answer: 500 km
Correct Answer: pivot station
Correct Answer: 4 cm
Correct Answer: all the above.
Correct Answer: northward
Correct Answer: central projection
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