Surveying The scale of a vertical photograph of focal length ‘f’ taken from height of ‘H’ metres above M.S.L., at a point of reduced level ‘h’, is f/(H - h) f/(H + h) (H - h)/f f/H f/(H - h) f/(H + h) (H - h)/f f/H ANSWER DOWNLOAD EXAMIANS APP
Surveying For a line AB the forebearing of AB and back bearing of AB differ by 180° the forebearing of AB and back bearing of BA differ by 180° both (A) and (B) are correct none is correct the forebearing of AB and back bearing of AB differ by 180° the forebearing of AB and back bearing of BA differ by 180° both (A) and (B) are correct none is correct ANSWER DOWNLOAD EXAMIANS APP
Surveying When a star is between the pole and the horizon, the relationship between latitude (λ), zenith distance (z) and declination δ, is θ = 180° - (z + δ) θ = (z + δ) - 180° θ = z + δ θ = δ - z θ = 180° - (z + δ) θ = (z + δ) - 180° θ = z + δ θ = δ - z ANSWER DOWNLOAD EXAMIANS APP
Surveying Cross staff is an instrument used for measuring bearings of the lines None of these setting out right angles measuring approximate horizontal angles measuring bearings of the lines None of these setting out right angles measuring approximate horizontal angles ANSWER DOWNLOAD EXAMIANS APP
Surveying The relief displacement of a building 72 m high on photograph is 7.2 mm and its top appears 10 cm away from principal point. The flying height of the camera, is 1000 m 2000 m 500 m 1500 m 1000 m 2000 m 500 m 1500 m ANSWER DOWNLOAD EXAMIANS APP
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 6000 m 5000 m 7000 m 4000 m 6000 m 5000 m 7000 m 4000 m ANSWER DOWNLOAD EXAMIANS APP
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