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. A reference system (geographic coordinates)






3. 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






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






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






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






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






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






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






10. GIS is not a ______






11. The ability to link files together.






12. Smoothing & Shape abstraction.






13. Precision of a measurement with respect to time






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






15. Most popular form of USGS Map

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






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






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






19. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






20. When parallels & meridians intersect at right angles.






21. 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.






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






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






24. Digital Elevation Model






25. Arcs only ___ at Nodes






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






27. Description by name: ex London






28. Fixed entitites - Can only take a specific value (Ex. number of students in a class - anything that is counted and not measured)






29. 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.






30. The nature of relationships & connectivity between them.






31. The reverse of each other.






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






33. 7 Spatial Res: 30m Temporal Res: 16 day Swath Width: 183km






34. Symbol on a map used to show direction






35. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






37. Deliver location / topographic information.






38. 3 different types of ________ - content & services ICS I - Infrastructure (Hardware & Sensors). C - Content (sensors - APIs - UGC & VGI). S - Standards (or lack thereof): access - authority.






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






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






41. Geographic Coordinate System.






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






43. Understand spatial relations between landmarks>shortcuts.






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






45. Assigning location information to text & discourse.






46. Points - Polygons - Lines






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






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






49. A process of mathematical conversion.






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