Surveying The scale of a tilted photograph of focal length f, taken from an altitude H, along the plate parallel through plumb point, is f/H sec θ f sec θ/H f/H f/H cos ½θ f/H sec θ f sec θ/H f/H f/H cos ½θ ANSWER DOWNLOAD EXAMIANS APP
Surveying The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is 6.5 mm 7.5 mm 4.4 mm 5.5 mm 6.5 mm 7.5 mm 4.4 mm 5.5 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying Different grades are joined together by a Transition curve Vertical curve Compound curve Reverse curve Transition curve Vertical curve Compound curve Reverse curve 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 + tan β)/S h tan β/S h tan α/S h (tan α - tan β)/S h (tan α + tan β)/S h tan β/S h tan α/S ANSWER DOWNLOAD EXAMIANS APP
Surveying The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is 2f2 3f2 ½f f2 2f2 3f2 ½f f2 ANSWER DOWNLOAD EXAMIANS APP
Surveying The declination and right ascension of the sun becomes 23° 27' S and 270° respectively on September 21 June 21 December 22 March 21 September 21 June 21 December 22 March 21 ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS