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/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 h (tan α + tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying For a line AB the forebearing of AB and back bearing of AB differ by 180° both (A) and (B) are correct the forebearing of AB and back bearing of BA differ by 180° none is correct the forebearing of AB and back bearing of AB differ by 180° both (A) and (B) are correct the forebearing of AB and back bearing of BA differ by 180° none is correct ANSWER DOWNLOAD EXAMIANS APP
Surveying Assuming human normal vision distance 25 cm, smallest measurable angle 20", and intraocular distance 6.5 cm, the smallest depth to be discerned is 0.1 mm 1.1 mm 1.00 mm 0.5 mm 0.1 mm 1.1 mm 1.00 mm 0.5 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying The latitude (λ) of a place and the altitude (α) of the pole are related by λ = α λ = 180° - α λ = 90° - α λ = α - 90° λ = α λ = 180° - α λ = 90° - α λ = α - 90° ANSWER DOWNLOAD EXAMIANS APP
Surveying The following points form a pair of homologous points: Photo isocenter and ground isocenter Photo principal point and ground principal point All listed here Photo plumb point and ground plumb point Photo isocenter and ground isocenter Photo principal point and ground principal point All listed here Photo plumb point and ground plumb point ANSWER DOWNLOAD EXAMIANS APP
Surveying If the horizontal distance between the staff point and the point of observation is d, then the error due to curvature of earth is proportional to d2 1/d 1/d2 d d2 1/d 1/d2 d ANSWER DOWNLOAD EXAMIANS APP
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