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/S h (tan α + tan β)/S h tan β/S h (tan α - tan β)/S h tan α/S h (tan α + tan β)/S h tan β/S h (tan α - tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying The angular distance of a heavenly body from the equator, measured along its meridian, is called Declination Zenith distance Co-latitude Altitude Declination Zenith distance Co-latitude Altitude ANSWER DOWNLOAD EXAMIANS APP
Surveying If E is the spherical excess and R the radius of the earth, the surface area of the triangle, is πR²E/270° πR²E/90° πR²E/180° πR²E/360° πR²E/270° πR²E/90° πR²E/180° πR²E/360° ANSWER DOWNLOAD EXAMIANS APP
Surveying Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel 0.4 0.36 0.6 0.24 0.4 0.36 0.6 0.24 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 100.345 m 100.655 m 101.870 m 99.345 m 100.345 m 100.655 m 101.870 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on December 22 June 21 September 21 March 21 December 22 June 21 September 21 March 21 ANSWER DOWNLOAD EXAMIANS APP
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