Part ll Flashcards
List the two most complex surfaces considered in Geomatics in descending order of complexity?
Terrain-physical
Geoid-physical
Two benefits of using transverse mercator projection system
Used in marine navigation
Angles and shapes with small areas are preseved
Why is it important to set up vertically over a point?
To reduce errors
It is important to set up vertically over a point we want to a take dimensions to a specific coordinate
To ensure that the coordinate refer to the same point in the ground where wodden peg is located
Why does the total station and level instrument need to be levelled ?
To apply the principle of plane. Surveying
To reduce errors
To make observations in the same horizontal plane as the site
What is the purpose to the RO observation?
To check the accuracy to the field observations
To check whether the total station has moved during the series of observations
Why benchmarks are used in levelling?
The benchmark is a height referenced to MSL
To calculate reduced levels higher referenced to MSL
Why is it important to acquire the services of a land surveyor that belongs to the SAGC ?
