Surveying
If the general ground level of any area is 10% of the flying height, the principal points may be used as the centers of radial directions for small scale mapping even in tilted photograph up to

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Pick up the correct statement for horizontal photographs.

The lines parallel to the negative plane are projected as parallel lines
Parallel lines do not appear parallel in central projection
All listed here
The two sides of a road meet at the vanishing point

ANSWER DOWNLOAD EXAMIANS APP