Surveying
The sensitivity of a bubble tube can be increased by

decreasing the radius of curvature of tube
decreasing the length of bubble
increasing the diameter of the tube
increasing the viscosity of liquid

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Circumpolar stars

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

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Pick up the correct statement for horizontal photographs.

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

ANSWER DOWNLOAD EXAMIANS APP