SURVEYING QUIZ

Mean sun

Vernal equinox

True sun

All listed here

Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys

Primary triangles are broken down into secondary triangles of somewhat lesser accuracy

All listed here

Geodetic triangulation of greatest possible sides and accuracy is carried out

All of these

Engineering works, i.e. terminal points of long tunnels, bridge abutments, etc.

Control points for surveys of large areas

Control points for photogrammetric surveys

5000 m

4000 m

6000 m

7000 m

450 mm × 600 mm

750 mm × 900 mm

600 mm × 750 mm

300 mm × 450 mm

0.5 mm

0.1 mm

1.00 mm

1.1 mm

Measuring angle at one station and distance from other

Measuring distance from two points on traverse line

Measuring angles to the point from at least two stations

Measuring angle and distance from one transit station

error due to refraction only

error due to curvature only

None of these

error due to both curvature and re-fraction

Base line of the right photograph of stereo pair

Sum of the base lines of stereo pair

Base line of the left photograph of stereo pair

Mean of the base lines of the stereo pair

gentle slope

uniform slope

plane surface

steep slope