Civil Engineering :: Surveying
- 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents
- The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on
- The declination and right ascension of the sun becomes 23° 27' S and 270° respectively on
- The following sights are taken on a “turning point”
- The horizontal angle between the true meridian and magnetic meridian at a place is called
- A ’level line’ is a
- Accidental errors
- Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
- Refraction correction
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