Surveying If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be f tan θ f cos θ f sec θ f sin θ f tan θ f cos θ f sec θ f sin θ ANSWER DOWNLOAD EXAMIANS APP
Surveying Which of the following errors can be neutralised by setting the level midway between the two stations ? None of these error due to curvature only error due to both curvature and re-fraction error due to refraction only None of these error due to curvature only error due to both curvature and re-fraction error due to refraction only ANSWER DOWNLOAD EXAMIANS APP
Surveying Pick up the correct statement from the following. The difference between the longitudes of the places is obtained. By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres All of these By subtracting their longitudes if places are in the same hemisphere By adding their longitudes if places are in the different hemispheres By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres All of these By subtracting their longitudes if places are in the same hemisphere By adding their longitudes if places are in the different hemispheres ANSWER DOWNLOAD EXAMIANS APP
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 50 km 10 km 30 km 25 km 50 km 10 km 30 km 25 km ANSWER DOWNLOAD EXAMIANS APP
Surveying The point on the photograph where bisector between the vertical line through optical centre of the camera lens and the plate perpendicular meets, is known as Perspective centre Isocenter Principal point Plumb point Perspective centre Isocenter Principal point Plumb point ANSWER DOWNLOAD EXAMIANS APP
Surveying To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30,000, with a camera of 30 cm focal length, the flying height is 6000 m 7000 m 4000 m 5000 m 6000 m 7000 m 4000 m 5000 m ANSWER DOWNLOAD EXAMIANS APP
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