Surveying If two points differing by 1° of latitude and of the same longitude is 110 km apart on the earth, then two astronomical positions on the moon is about 10 km 50 km 25 km 30 km 10 km 50 km 25 km 30 km ANSWER DOWNLOAD EXAMIANS APP
Surveying The elevation of the star at elongation is obtained by sin α = cos φ sec δ sin α = sin φ cosec δ sin α = cos φ cosec δ sin α = sin φ sec δ sin α = cos φ sec δ sin α = sin φ cosec δ sin α = cos φ cosec δ sin α = sin φ sec δ 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 None of these cos z = sec φ . cos δ tan z = sec φ . cos δ sin z = sec φ . cos δ None of these cos z = sec φ . cos δ tan z = sec φ . cos δ sin z = sec φ . cos δ ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following errors can be eliminated by taking mean of bot face observations ? error due to imperfect graduations error due to line of collimation not being perpendicular to horizontal axis error due to eccentricity of verniers error due to imperfect adjustment of plate levels error due to imperfect graduations error due to line of collimation not being perpendicular to horizontal axis error due to eccentricity of verniers error due to imperfect adjustment of plate levels ANSWER DOWNLOAD EXAMIANS APP
Surveying The flying height of the camera is 1,000 m above mean ground level, the distance of the top of a building from a nadir point is 10 cm and the relief displacement of building is 7.2 mm. The height of the building, is 62 m 52 m 72 m 82 m 62 m 52 m 72 m 82 m ANSWER DOWNLOAD EXAMIANS APP
Surveying The error due to eccentricity of inner and outer axes can be eliminated by taking mean of several readings distributed over different portions of the graduated circle double sighting reading both verniers and taking the mean of the two taking both face observations and taking the mean of the two taking mean of several readings distributed over different portions of the graduated circle double sighting reading both verniers and taking the mean of the two taking both face observations and taking the mean of the two ANSWER DOWNLOAD EXAMIANS APP
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