Surveying If v, t and f/H are the ground speed of the aircraft, the shutter speed of the camera and the scale of the photograph respectively, then the amount of image displacement i = v. t. (f/H) i = t. H/v. f i = v. f/t. H i = v. t. H/f i = v. t. (f/H) i = t. H/v. f i = v. f/t. H i = v. t. H/f 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 5000 m 4000 m 6000 m 7000 m 5000 m 4000 m 6000 m 7000 m ANSWER DOWNLOAD EXAMIANS APP
Surveying If the magnetic bearing of the sun at a place at noon in southern hemisphere is 167°, the magnetic declination at that place is 77° N 13° W 13° E 23° S 77° N 13° W 13° E 23° S ANSWER DOWNLOAD EXAMIANS APP
Surveying The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is B = b/fH B = bH/f B = H/bf B =f/bH B = b/fH B = bH/f B = H/bf B =f/bH ANSWER DOWNLOAD EXAMIANS APP
Surveying The difference in longitude of two places expressed in time is equal to the difference in their Sidereal time Mean solar time All listed here Apparent solar time Sidereal time Mean solar time All listed here Apparent solar time ANSWER DOWNLOAD EXAMIANS APP
Surveying Invar tapes used for measuring base lines, is made of nickel-iron alloy containing nickel 0.24 0.6 0.4 0.36 0.24 0.6 0.4 0.36 ANSWER DOWNLOAD EXAMIANS APP
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