Surveying If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be 6 mm 2 mm 10 mm 4 mm 6 mm 2 mm 10 mm 4 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying The orthogonal projection of the perspective centre on a tilted photograph, is called Principal point Nadir Isocenter Plumb point Principal point Nadir Isocenter Plumb point ANSWER DOWNLOAD EXAMIANS APP
Surveying If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer then the hour angle of the star at elongation is given by tan H = tan φ . cot δ cos H = tan φ . cot δ sin H = tan φ . cot δ None of these tan H = tan φ . cot δ cos H = tan φ . cot δ sin H = tan φ . cot δ None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying For any star to be a circumpolar star, its Distance from the pole must be less than the latitude of the observer Declination must be 0° Hour angle must be 180° Declination must be 90° Distance from the pole must be less than the latitude of the observer Declination must be 0° Hour angle must be 180° Declination must be 90° ANSWER DOWNLOAD EXAMIANS APP
Surveying Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel 0.6 0.24 0.36 0.4 0.6 0.24 0.36 0.4 ANSWER DOWNLOAD EXAMIANS APP
Surveying Parallax bar measures Height difference Height Parallax difference Parallax Height difference Height Parallax difference Parallax ANSWER DOWNLOAD EXAMIANS APP
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