Surveying On vertical photographs, height displacement is All listed here Negative for points below datum Zero for points vertically below the air station Positive for points above datum All listed here Negative for points below datum Zero for points vertically below the air station Positive for points above datum 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 4000 m 6000 m 7000 m 5000 m 4000 m 6000 m 7000 m 5000 m ANSWER DOWNLOAD EXAMIANS APP
Surveying Sidereal day All listed here Is the period of time taken by the earth in making a complete rotation with reference to stars Is slightly shorter than an ordinary solar day Is divided into the conventional hours, minutes and seconds All listed here Is the period of time taken by the earth in making a complete rotation with reference to stars Is slightly shorter than an ordinary solar day Is divided into the conventional hours, minutes and seconds ANSWER DOWNLOAD EXAMIANS APP
Surveying Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel 0.36 0.24 0.4 0.6 0.36 0.24 0.4 0.6 ANSWER DOWNLOAD EXAMIANS APP
Surveying The station where observations are not made, but the angles at the station are used in triangulation series, is known as Pivot station Subsidiary station Main station Satellite station Pivot station Subsidiary station Main station Satellite station ANSWER DOWNLOAD EXAMIANS APP
Surveying 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents 1 m 3 m 2 m 4 m 1 m 3 m 2 m 4 m ANSWER DOWNLOAD EXAMIANS APP
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