Test your basic knowledge |

GIS: Geographic Information Systems

Subject : it-skills
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Defined by NOIR NOIR N-Nominal - qualitive data. O-Ordinal - order or ranking. I-Interval - numeric scale - arbitrary units. R - Ratio - fixed origin - continuous scale.






2. Explanatory list of symbols on a map






3. A data classification method that divides a set of attribute values into groups that contain an equal range of values






4. The 5 components of a TIN: NETHT - 1. Nodes 2. Edges 3. Triangles 4. ___ 5. Topology.






5. A Complete frame






6. 1. An array of regulary spaced cells or pixels. 2. Each cell holds attributes (values).






7. GIS is not a ______






8. Points - Polygons - Lines






9. Data Modelling - Turning entities into complex objects (geometry - quality).






10. Digital Elevation Model






11. GIS is ________ - spatial analysis & dependent on the computer.






12. The acquisition of data about Earth's surface from a satellite orbiting the planet or other long-distance methods.






13. Google Maps or Microsoft Bing.






14. Preserve Shape






15. A line segment between 2 nodes -1 of which is a start node & the other an end node.






16. Sailors and pilots use these maps to navigate






17. Uses coordinates (X -Y) to represent spatial features. Scale matters involve what Polygons<>points. Polygons<>lines.






18. LN 1. L - Level Surfaces. 2. N - NAVD88.






19. Most popular form of USGS Map


20. Title - legend or key - grid system - distance scale - direction and compass rose






21. Triangulated Irregular Network.






22. A 3-D frame of reference (model of the earth) used to determine surface locations.






23. The reverse of each other.






24. Can not be made from other colors






25. Deliver location / topographic information.






26. A reference system (geographic coordinates)






27. 1. E - Ellipsoid dimensions. 2. D - Datum origin. 3. A - Angular alignment.






28. Relative to another known feature






29. DBMS used for: _______ - access - organize & edit.






30. The nature of relationships & connectivity between them.






31. Description by name: ex London






32. The 3 _____: 1. True. 2. Magnetic. 3. Grid.






33. Where 2 lines/arcs intersect - an endpoint - or a point along a line.






34. Geographic Coordinate System.






35. Assigning location information to text & discourse.






36. Consists of F & E: 1. Features. 2. Entities.






37. HAL - H-Human nature. A-Arbitrary/socially constructed. L-Loss of info (hiding variance within a class or group).






38. Classes based on natural groupings through examination of histogram (good: minimizes differences bad: data range uneven)






39. Contour lines never _______






40. Blue - Green - Red - NIR....






41. When areas on a map maintain the same proportional relationship to the areas on the earth that they represent.






42. Preserve Direction






43. Understand spatial relations between landmarks>shortcuts.






44. Townships were six miles square - and were subdivided into 36 sections - each section consisting of one square mile. One section of each township was set aside to support public education - and the remaining sections were to be sold at public auction






45. 80 % of all information contain _________






46. Thematic map that uses dots to represent the frequency of a variable in a given area.






47. The 5 key concepts in Geography & GIS (LDDSN) 1. Location. 2. _________. 3. Distance. 4. Space. 5. Navigation.






48. Points taken at regular intervals from the cumulative distribution function (CDF) of a random variable.






49. Global Positioning System.






50. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.