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






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






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






4. Symbol on a map used to show direction






5. The 5 __________: TTCETH - 1. Triangle table 2. Triangle-Node table 3. Coordinate table 4. Triangle-Edge table 5. Hull-Edge table.






6. Accuracy - reliability - responsibility.






7. Blue - Green - Red - NIR....






8. Explanatory list of symbols on a map






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






10. To avoid corrupt data!






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






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






13. Provide information about a particular topic or theme.






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






15. Sailors and pilots use these maps to navigate






16. The nature of relationships & connectivity between them.






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






18. Description by name: ex London






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






20. Connect & travel between landmarks by moving thru space.






21. GIS is not a ______






22. When parallels & meridians intersect at right angles.






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






24. Arcs only ___ at Nodes






25. 2 common _______: 1. Vector. 2. Raster.






26. Google Maps or Microsoft Bing.






27. Smoothing & Shape abstraction.






28. Contour lines never _______






29. 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.






30. 80 % of all information contain _________






31. Understand spatial relations between landmarks>shortcuts.






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






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






34. A process of mathematical conversion.






35. Can assume all values between any two specific values. They are obtained by measuring.






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






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






38. Converts what entities into objects in the computer 1. Geometry (points - lines - polygons). 2. Measurement of attributes. 3. Accuracy &/or error.






39. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






41. The reverse of each other.






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






43. Digital Elevation Model






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






45. An assignment of geographic coordinates to locations.






46. Global Positioning System.






47. GIS is ________






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






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






50. Can not be made from other colors