Surveying To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30,000, with a camera of 30 cm focal length, the flying height is 7000 m 6000 m 4000 m 5000 m 7000 m 6000 m 4000 m 5000 m ANSWER DOWNLOAD EXAMIANS APP
Surveying Accidental errors Do not follow any definite mathematical law All of these Are generally small Cannot be removed by applying corrections to the observed values Do not follow any definite mathematical law All of these Are generally small Cannot be removed by applying corrections to the observed values ANSWER DOWNLOAD EXAMIANS APP
Surveying For any star to be a circumpolar star, its Declination must be 90° Declination must be 0° Hour angle must be 180° Distance from the pole must be less than the latitude of the observer Declination must be 90° Declination must be 0° Hour angle must be 180° Distance from the pole must be less than the latitude of the observer ANSWER DOWNLOAD EXAMIANS APP
Surveying α and β are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being ‘S’ and ‘f’ respectively. Parallax displacement of the point due to relief, is h (tan α + tan β)/S h tan α/S h tan β/S h (tan α - tan β)/S h (tan α + tan β)/S h tan α/S h tan β/S h (tan α - tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is 40° 70° 60° 80° 40° 70° 60° 80° ANSWER DOWNLOAD EXAMIANS APP
Surveying Direct method of contouring is most accurate method suitable for hilly terrains a quick method adopted for large surveys only most accurate method suitable for hilly terrains a quick method adopted for large surveys only ANSWER DOWNLOAD EXAMIANS APP
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