Discussion
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- Question
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.
- Correct Answer
- 0.1 mm
- 1. 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
- 2. 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
- 3. Pick up the incorrect statement from the following :
Options- A. Latitudes north of the equator are taken as positive
- B. Latitudes south of the equator are taken as negative
- C. Longitudes east of Greenwich are taken as negative
- D. Longitudes west of Greenwich are taken as positive.
- E. Both (c) and (d) of the above. Discuss
- 4. The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height H is 100 m. If mean photo base is 95.2 mm, the flying height is
Options- A. 8,000 m
- B. 10,000 m
- C. 12,000 m
- D. 14,000 m Discuss
- 5. In field astronomy, the quantities observed are entirely
Options- A. lengths
- B. angles
- C. heights
- D. all of these. Discuss
- 6. 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
- 7. The average eye base is assumed as
Options- A. 58 mm
- B. 60 mm
- C. 62 mm
- D. 64 mm
- E. 72 mm. Discuss
- 8. 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
- 9. The maximum error in radial line assumption, is
Options- A.
- B.
- C.
- D.
Discuss
- 10. 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
Advanced Surveying problems
Search Results
Correct Answer: f tan ?
Correct Answer: all the above.
Correct Answer: Longitudes east of Greenwich are taken as negative
Correct Answer: 12,000 m
Correct Answer: angles
Correct Answer: 500 km
Correct Answer: 64 mm
Correct Answer: all the above.
Correct Answer:
Correct Answer: summer solstice
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