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






2. Precision of a measurement with respect to time






3. Arcs only ___ at Nodes






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






5. Google Maps or Microsoft Bing.






6. The ability to link files together.






7. 3 topological concepts: 1. Connectivity - arcs connect to each other at nodes. 2._______ - arcs that connect to surround an area define a polygon. 3. Contiguity - arcs have direction & left & right sides.






8. Description by name: ex London






9. 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






10. GIS is ________






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






12. Understand spatial relations between landmarks>shortcuts.






13. Are made with GIS






14. The nature of relationships & connectivity between them.






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






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






17. Assigning location information to text & discourse.






18. Regulary spaced sample of points representing a surface.






19. GIS is not a ______






20. Symbol on a map used to show direction






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






22. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






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






25. Maps are restricted to a __________.






26. The reverse of each other.






27. Representative fraction






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






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






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






31. 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.






32. Preserve Shape






33. Most popular form of USGS Map

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






35. An assignment of geographic coordinates to locations.






36. Digital Elevation Model






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






38. 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.






39. When parallels & meridians intersect at right angles.






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






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






42. Preserve Direction






43. Application Programming Interfaces (increases access like my maps on google).






44. 80 % of all information contain _________






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






46. Points - Polygons - Lines






47. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






48. Geographic Coordinate System.






49. A Complete frame






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