Q. The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than

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Q. The station where observations are not made, but the angles at the station are used in triangulation series, is known as

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Q. Spring tides are caused when

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Q. Longitude of a place is the angular distance between the meridian of the place and

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Q. In field astronomy, the quantities observed are entirely

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Q. The orthogonal projection of the perspective centre on a tilted photograph, is called

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Q. The principal plane contains

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Q. The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as

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Q. Pick up the correct statement from the following :

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Q. The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is

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Q. A nautical mile is

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Q. The following points form a pair of homologous points :

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Q. The latitude of the observer's position, is

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Q. 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

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Q. The position of the sun when its north declination is maximum is known as

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Q. Pick up the correct statement from the following :

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Q. For mapping any country

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Q. The negative sign is assigned to

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Q. Pick up the correct statement from the following :

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Q. The method of surveying by triangula-tion was first introduced by the Dutchman Snell in

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