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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Q. Right ascension of a heavenly body is its equatorial angular distance measured

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Q. Pick up the incorrect statement from the following. In a spherical triangle

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Q. Pick up the correct statement from the following :

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Q. The latitude of a place was obtained by subtracting the declination of a star from its zenith distance, the observed star was between

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Q. If S is the sum of three angles of a spherical triangle, the spherical excess equals

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Q. The want of correspondence in stereo-photographs

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Q. The latitude of a place was obtained by subtracting the zenith distance of a star from its declination, the observed star was between

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Q. Pick up the correct statement from the following :

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Q. If α is the observed altitude, the refraction correction in seconds, is

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Q. The value of geo-centric parallax to be added to the observed altitude of sun is

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Q. With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be

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Q. A star is said to elongate

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Q. 23 cm x 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

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