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. Contour lines never _______






2. The 4 elements or ______: 1. Cell Value - each cell carries a value. 2. Cell size - this determines the resolution. 3. Raster bands - Can have single or multiple bands. 4. Spatial Reference - Raster data must have spatial reference.






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






4. GIS is ________






5. When parallels & meridians intersect at right angles.






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






7. 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






8. Deliver location / topographic information.






9. Google Maps or Microsoft Bing.






10. 2 ______: 1. Files/records. 2. Database/collection of files.






11. Shift in delivery (eg - require user interaction).






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






13. Geographic Coordinate System.






14. Explanatory list of symbols on a map






15. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






16. Accuracy - reliability - responsibility.






17. The ability to link files together.






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






19. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






20. A tabular file containing rows and columns; descriptive attributes about some object such as a geographic feature are contained in each row






21. Identify unique points - patterns or features in space.






22. Smoothing & Shape abstraction.






23. Relative to another known feature






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






25. Real Things (trees - forests - cities etc).






26. A reference system (geographic coordinates)






27. 2 common _______: 1. Vector. 2. Raster.






28. Blue - Green - Red - NIR....






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






30. When distances from the center of the projection to any other place on the map are uniform in all directions.






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






32. Symbol on a map used to show direction






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






34. Description by name: ex London






35. Lines that connect points of equal value.






36. The nature of relationships & connectivity between them.






37. A map containing information on only one topic or theme.






38. Triangulated Irregular Network.






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






40. Map in which some thematic mapping variable is substituted for area (like a graph in a map)






41. People creating their own maps - on their own terms by combining elements of an existing toolset.






42. Are made with GIS






43. Precision of a measurement with respect to time






44. Provide information about a particular topic or theme.






45. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






46. The smallest pixel size visible in an image - the limit of magnification






47. User generated content (UGC). Volunteered geog. info (VGI). Professional vs amateur. Neogeography vs GIS.






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






49. Files in the DB can be linked or joined using the _______






50. Maps that show the absolute location of places and geographic features determined by a frame of reference - typically latitude and longitude