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. Precision of a measurement with respect to time






2. Arcs only ___ at Nodes






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






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






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






6. Triangulated Irregular Network.






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






8. Can not be made from other colors






9. 80 % of all information contain _________






10. Geographic Coordinate System.






11. GIS is ________






12. 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.






13. A Complete frame






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






15. 2 common _______: 1. Vector. 2. Raster.






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






17. An assignment of geographic coordinates to locations.






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






19. Understand spatial relations between landmarks>shortcuts.






20. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






21. Global Positioning System.






22. Points - Polygons - Lines






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






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






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






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






27. Explanatory list of symbols on a map






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






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






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






31. When parallels & meridians intersect at right angles.






32. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






33. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






34. 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.






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






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






37. Google Maps or Microsoft Bing.






38. A data classification method that divides a set of attribute values into groups that contain an equal range of values






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






40. Most popular form of USGS Map






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






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






43. Essentials of DBMS: Each record has a ________






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






45. Deliver location / topographic information.






46. 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






47. Assigning location information to text & discourse.






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






49. Preserve Shape






50. Digital Elevation Model