Surveying On vertical photographs, height displacement is Negative for points below datum All listed here Positive for points above datum Zero for points vertically below the air station Negative for points below datum All listed here Positive for points above datum Zero for points vertically below the air station ANSWER DOWNLOAD EXAMIANS APP
Surveying ‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is f/H H. f H/f H + f f/H H. f H/f H + f ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of a tilted photograph of focal length f taken from an altitude H, along the plate parallel through principal point is f/H sec θ f sec θ/H f/H cos ½θ f/H f/H sec θ f sec θ/H f/H cos ½θ f/H ANSWER DOWNLOAD EXAMIANS APP
Surveying If the length of a chain is found to be short on testing, it can be adjusted by removing one or more small circular rings straightening the links closing the joints of the rings if opened out All of these removing one or more small circular rings straightening the links closing the joints of the rings if opened out All of these ANSWER DOWNLOAD EXAMIANS APP
Surveying According to Napier's Rules of circular parts for a right angled triangle, sine of middle part equals the product of Tangents of two adjacent parts Sines of two adjacent parts Both (A) and (B) above Cosines of two adjacent parts Tangents of two adjacent parts Sines of two adjacent parts Both (A) and (B) above Cosines of two adjacent parts ANSWER DOWNLOAD EXAMIANS APP
Surveying At western elongation, the pole star moves Eastward Westward Northward Southward Eastward Westward Northward Southward ANSWER DOWNLOAD EXAMIANS APP
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