Surveying Cross staff is an instrument used for measuring bearings of the lines setting out right angles measuring approximate horizontal angles None of these measuring bearings of the lines setting out right angles measuring approximate horizontal angles None of these ANSWER DOWNLOAD EXAMIANS APP
Surveying The product of the distances of plumb point and horizon point of a vertical photograph from its principal point, is f2 2f2 ½f 3f2 f2 2f2 ½f 3f2 ANSWER DOWNLOAD EXAMIANS APP
Surveying The average eye base is assumed as 60 mm 64 mm 58 mm 62 mm 60 mm 64 mm 58 mm 62 mm ANSWER DOWNLOAD EXAMIANS APP
Surveying The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as Iso-centre Perspective centre Ground plumb point Ground principal point Iso-centre Perspective centre Ground plumb point Ground principal point ANSWER DOWNLOAD EXAMIANS APP
Surveying The angular distance of a heavenly body from the equator, measured along its meridian, is called Co-latitude Declination Altitude Zenith distance Co-latitude Declination Altitude Zenith distance ANSWER DOWNLOAD EXAMIANS APP
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 β/S h tan α/S h (tan α - tan β)/S h (tan α + tan β)/S h tan β/S h tan α/S h (tan α - tan β)/S h (tan α + tan β)/S ANSWER DOWNLOAD EXAMIANS APP
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