Surveying The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is B =f/bH B = b/fH B = bH/f B = H/bf B =f/bH B = b/fH B = bH/f B = H/bf ANSWER DOWNLOAD EXAMIANS APP
Surveying A series of closely spaced contour lines represents a gentle slope plane surface uniform slope steep slope gentle slope plane surface uniform slope steep slope ANSWER DOWNLOAD EXAMIANS APP
Surveying The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as Plumb point Isocenter Principal point Perspective centre Plumb point Isocenter Principal point Perspective centre ANSWER DOWNLOAD EXAMIANS APP
Surveying If the R.L. of a B.M. is 100.00 m, the back- sight is 1.215 m and the foresight is 1.870 m, the R.L. of the forward station is 99.345 m 101.870 m 100.345 m 100.655 m 99.345 m 101.870 m 100.345 m 100.655 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is 1 : 15,000 1 : 10,000 1 : 30,000 1 : 20,000 1 : 15,000 1 : 10,000 1 : 30,000 1 : 20,000 ANSWER DOWNLOAD EXAMIANS APP
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
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