Surveying If α is the observed altitude, the refraction correction in seconds, is 58" cot α 58 sin α 58 cos α 58" tan α 58" cot α 58 sin α 58 cos α 58" tan α ANSWER DOWNLOAD EXAMIANS APP
Surveying 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents 3 m 1 m 2 m 4 m 3 m 1 m 2 m 4 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than 0.0001 second None of these 0.001 second 0.01 second 0.0001 second None of these 0.001 second 0.01 second ANSWER DOWNLOAD EXAMIANS APP
Surveying The angle between the observer's meridian and declination circle of a heavenly body, is known as Azimuth Hour angle Right ascension Declination Azimuth Hour angle Right ascension Declination ANSWER DOWNLOAD EXAMIANS APP
Surveying The sun's declination remains north between June 21 to September 21 March 21 to June 21 September 21 to December 21 Both (A) and (B) of above June 21 to September 21 March 21 to June 21 September 21 to December 21 Both (A) and (B) of above 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 (H - h)/f f/(H - h) f/(H + h) f/H (H - h)/f f/(H - h) f/(H + h) f/H ANSWER DOWNLOAD EXAMIANS APP