Civil Engineering :: Surveying
- Contour interval is
- Assuming human normal vision distance 25 cm, smallest measurable angle 20", and intraocular distance 6.5 cm, the smallest depth to be discerned is
- If the distance between the projectors is altered by a movement along X-axis of one projector,
- Pick up the correct statement from the following:
- Pick up the incorrect statement from the following:
- The relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is
- The orthogonal projection of the perspective centre on a tilted photograph, is called
- The distance between the projection centre and the photograph, is called
- The great circle which passes through the zenith, nadir and the poles, is known as
- Pick up the correct statement from the following:
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