Introduction to Geographic Information Systems
GIS year one exam
- Introduction
- Systems
- Principle of geodosy
- Spatial referencing and coordinate systems
- Global positioning system
- Data representation and storage
- Getting data
- Spatial analysis
- GIS outputs
- Created by: Sophie
- Created on: 05-01-15 08:58
Other questions in this quiz
2. What is the relationship between the geoid and the ellipsoid?
- The ellipsoid comprises the smoothed area of the geoid earth
- Earth is made up of a smooth geoid and an elevated ellipsoid
- Geoid includes smoothes topography on the top of an ellipsoid
- Geoid includes the rough surface of the sphere of the geoid
3. How do you measure distance?
- Distance= velocity x time
- Distance= velocity/time
- Distance= time - velocity
- Distance= time + velocity
4. What is a benefit of raster data?
- The resolution is not as clear as vector data and can make the data redundant
- Can change the resolution to fit purpose of display
- Mixed pixels are not as clear and hard to distinguish between
- Redundancy of data by increasing the resolution which decrease topological error but increase volume of data
5. What is not a feature of primary spatial data?
- Total stations can collect primary x,y and z coordinates relative to the spatial reference system
- Sometimes collected without a spatial reference but you can allocate a spatial referencing system on top in order to conform
- You do not need a spatial referencing system
- GPS collection
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