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. Assigning location information to text & discourse.






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






3. Digital Elevation Model






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






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






6. A Complete frame






7. Sailors and pilots use these maps to navigate






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






9. Global Positioning System.






10. Preserve Shape






11. Understand spatial relations between landmarks>shortcuts.






12. Triangulated Irregular Network.






13. Lines that connect points of equal value.






14. GIS is ________






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






16. 2 common _______: 1. Vector. 2. Raster.






17. Relative to another known feature






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






19. The study of place names - origins - history & meanings.






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






21. Geographic Coordinate System.






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






23. Essentials of DBMS: Each record has a ________






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






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






26. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






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






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






29. Explanatory list of symbols on a map






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






31. Most popular form of USGS Map

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32. Smoothing & Shape abstraction.






33. Maps are restricted to a __________.






34. The reverse of each other.






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






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






37. A process of mathematical conversion.






38. The 4 types of ___________:SADD. 1. S - Shape: Conformal. 2. A - Area: Variant. 3. D - Direction: Preserved. 4. D - Distance: Variant.






39. The range of wavelengths sampled by a remote sensor.






40. GIS is not a ______






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






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






43. 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.






44. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






45. Area of the Earth that is displayed in each image






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






47. 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






48. The ability to link files together.






49. Blue - Green - Red - NIR....






50. _________ of the Real World: (S&E - S&S - G&A) 1. Selection & Elimination. 2. Simplification & Smoothing. 3. Generalization & Aggregation.