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






2. 80 % of all information contain _________






3. Assigning location information to text & discourse.






4. A Complete frame






5. 3 levels of _______:1. Conceptual - definitions - attributes. 2. Logical Model - formalize definitions & measures. 3. Digital Model - define & describe features.






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






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






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






9. Global Positioning System.






10. Digital Elevation Model






11. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






12. GIS is not a ______






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






14. Connectivity: ___________. 3 elements 1. Nodes & vertices define the shape of the arc. 2. Arcs have a from-node (or starting node) & a to-node (or ending-node). 3. Arcs only join at nodes.






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






16. Points - Polygons - Lines






17. Understand spatial relations between landmarks>shortcuts.






18. Geographic Coordinate System.






19. Symbol on a map used to show direction






20. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






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






23. Arcs only ___ at Nodes






24. Maps are restricted to a __________.






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






26. The ability to link files together.






27. Preserve Direction






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






29. Smoothing & Shape abstraction.






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






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






32. Accuracy - reliability - responsibility.






33. Most popular form of USGS Map

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






35. Regulary spaced sample of points representing a surface.






36. GIS is ________






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






38. 2 ______: 1. Files/records. 2. Database/collection of files.






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






40. A process of mathematical conversion.






41. The 2 _____ in data modelling: 1. Database. 2. Data Storage.






42. Lines that connect points of equal value.






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






44. An assignment of geographic coordinates to locations.






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






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






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






48. Assigning location information to various media (photos - video - music).






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






50. Sailors and pilots use these maps to navigate