Surveying The principal plane contains Nadir point Iso-centre Principal point All of these Nadir point Iso-centre Principal point All of these ANSWER DOWNLOAD EXAMIANS APP
Surveying If 16 flight lines are run perpendicular to an area 30 km wide, their spacings on a photographical map on scale 1 : 50,000 , will be 1 cm 4 cm 3 cm 2 cm 1 cm 4 cm 3 cm 2 cm ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following errors can be neutralised by setting the level midway between the two stations ? error due to refraction only error due to both curvature and re-fraction None of these error due to curvature only error due to refraction only error due to both curvature and re-fraction None of these error due to curvature only ANSWER DOWNLOAD EXAMIANS APP
Surveying If ‘δ’ is the declination of the star and ‘φ’ is the latitude of the observer then the hour angle of the star at elongation is given by sin H = tan φ . cot δ None of these tan H = tan φ . cot δ cos H = tan φ . cot δ sin H = tan φ . cot δ None of these tan H = tan φ . cot δ cos H = tan φ . cot δ ANSWER DOWNLOAD EXAMIANS APP
Surveying When a star is between the pole and the horizon, the relationship between latitude (λ), zenith distance (z) and declination δ, is θ = 180° - (z + δ) θ = (z + δ) - 180° θ = δ - z θ = z + δ θ = 180° - (z + δ) θ = (z + δ) - 180° θ = δ - z θ = z + δ ANSWER DOWNLOAD EXAMIANS APP
Surveying The great circle along which the sun appears to trace on the celestial sphere with earth as centre during the year, is called Equator None of these Ecliptic Celestial equator Equator None of these Ecliptic Celestial equator ANSWER DOWNLOAD EXAMIANS APP
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