Surveying
Theodolite is an instrument used for

measurement of horizontal angles only
tightening the capstan-headed nuts of level tube
measurement of both horizontal and vertical angles
measurement of vertical angles only

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Circumpolar stars

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

ANSWER DOWNLOAD EXAMIANS APP