1. If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be
2. Which of the following methods of contouring is most suitable for a hilly terrain?
3. The size of a plane table is
4. The angle between the plane of the equator and the plane of the ecliptic, is known as obliquity of the ecliptic and its value is
5. For a tacheometer the additive and multi-plying constants are respectively
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