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 4000 m 5000 m 7000 m 6000 m 4000 m 5000 m 7000 m 6000 m ANSWER DOWNLOAD EXAMIANS APP
Surveying Perspective centre relates to Orthogonal projection None of these Parallel projection Central projection Orthogonal projection None of these Parallel projection Central projection ANSWER DOWNLOAD EXAMIANS APP
Surveying The scale of the photography taken from a height of 300 m, with a camera of focal length 15 cm, is 1 : 30,000 1 : 20,000 1 : 15,000 1 : 10,000 1 : 30,000 1 : 20,000 1 : 15,000 1 : 10,000 ANSWER DOWNLOAD EXAMIANS APP
Surveying The sidereal day is the time interval between two successive upper transits of Mean sun First point of Aries First point of Libra The polar star Mean sun First point of Aries First point of Libra The polar star ANSWER DOWNLOAD EXAMIANS APP
Surveying The principal plane contains Iso-centre All of these Principal point Nadir point Iso-centre All of these Principal point Nadir point ANSWER DOWNLOAD EXAMIANS APP
Surveying If the equatorial distance between two meridians is 100 km, their distance at 60° latitude will be 600 km 800 km 1000 km 500 km 600 km 800 km 1000 km 500 km ANSWER DOWNLOAD EXAMIANS APP