31. With the rise of temperature, the sensitivity of a bubble tube
32. Direct method of contouring is
33. The correction applied to the measured base of length ‘L’ is
34. The shortest distance between two places measured along the surface of the earth, is
35. Longitude of a place is the angular distance between the meridian of the place and
36. If the altitudes of a star at its upper and lower transits are 60° 30' and 19° 30' respectively, the latitude of the place, is
37. The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is
38. Triangulation surveys are carried out for locating
39. For plane ground the scale of a vertical photograph will be same as that of a tiled photograph along the photo parallel through
40. If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to
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