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 If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer, then the azimuth of the star at elongation is given by cos z = sec φ . cos δ None of these sin z = sec φ . cos δ tan z = sec φ . cos δ cos z = sec φ . cos δ None of these sin z = sec φ . cos δ tan z = sec φ . cos δ ANSWER DOWNLOAD EXAMIANS APP
Surveying Triangulation surveys are carried out for locating Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc. Control points for photogrammetric surveys All of these Control points for surveys of large areas Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc. Control points for photogrammetric surveys All of these Control points for surveys of large areas ANSWER DOWNLOAD EXAMIANS APP
Surveying If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a level The correct answer is only (i) both (i) and (iv) only (iii) both (ii) and (iii) only (i) both (i) and (iv) only (iii) both (ii) and (iii) ANSWER DOWNLOAD EXAMIANS APP
Surveying The instrument used for accurate centering in plane table survey is plumbing fork alidade trough compass spirit level plumbing fork alidade trough compass spirit level 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/180° πR²E/360° πR²E/90° πR²E/270° πR²E/180° πR²E/360° πR²E/90° ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS