Advanced Surveying problems
- 1. The parallax of a point on the photograph is due to
Options- A. ground elevation
- B. flying height
- C. length of air base
- D. focal length of the camera.
- E. all the above. Discuss
Correct Answer: all the above.
- 2. If f is the focal length of the camera lens and ? is the angle of tilt, the distance of the plumb point from the principal point will be
Options- A. f sin ?
- B. f cos ?
- C. f tan ?
- D. f sec ?. Discuss
Correct Answer: f tan ?
- 3. Assuming human normal vision distance 25 cm, smallest measurable angle 20", and introcular distance 6.5 cm, the smallest depth to be discerned is
Options- A. 0.1 mm
- B. 0.5 mm
- C. 1.00 mm
- D. 1.1 mm. Discuss
Correct Answer: 0.1 mm
- 4. 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
Correct Answer: 500 km
- 5. The average eye base is assumed as
Options- A. 58 mm
- B. 60 mm
- C. 62 mm
- D. 64 mm
- E. 72 mm. Discuss
Correct Answer: 64 mm
- 6. 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
Correct Answer: all the above.
- 7. The maximum error in radial line assumption, is
Options- A.
- B.
- C.
- D.
Discuss
Correct Answer:
- 8. 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
Correct Answer: summer solstice
- 9. The orthogonal projection of the perspective centre on a tilted photograph, is called
Options- A. nadir
- B. isocentre
- C. principal point
- D. plumb point. Discuss
Correct Answer: principal point
- 10. 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
Correct Answer: pivot station
More in Civil Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.