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
4 m
2 m
3 m

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Circumpolar stars

Remain always above the horizon
Rotate round the North Pole
Rotate round the celestial pole
Are seldom seen near the pole star

ANSWER DOWNLOAD EXAMIANS APP