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. Symbol on a map used to show direction






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






3. Provide information about a particular topic or theme.






4. People creating their own maps - on their own terms by combining elements of an existing toolset.






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






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






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






8. Deliver location / topographic information.






9. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






10. 2 ______: 1. Unique ID. 2. Type Code. 3 Spatial Components PLP 1. Point. 2. Line/arc. 3. Polygon/area.






11. 2 reasons why Topology matters: 1. Error detection. 2. ___________.






12. Are made with GIS






13. Regulary spaced sample of points representing a surface.






14. To avoid corrupt data!






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






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






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






18. Sailors and pilots use these maps to navigate






19. 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.






20. 80 % of all information contain _________






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






22. Can not be made from other colors






23. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






25. Assigning location information to text & discourse.






26. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






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






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






30. 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.






31. 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






32. Triangulated Irregular Network.






33. A Complete frame






34. Relative to another known feature






35. When parallels & meridians intersect at right angles.






36. The ability to link files together.






37. GIS is not a ______






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






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






40. Points - Polygons - Lines






41. Lines that connect points of equal value.






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






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






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






45. Description by name: ex London






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






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






48. Preserve Shape






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






50. A process of mathematical conversion.