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. Area of the Earth that is displayed in each image






2. Contour lines never _______






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






4. Relative to another known feature






5. Precision of a measurement with respect to time






6. Preserve Shape






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






8. A process of mathematical conversion.






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






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






11. Provide information about a particular topic or theme.






12. Symbol on a map used to show direction






13. 2 ______: 1. Files/records. 2. Database/collection of files.






14. 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.






15. 9 Features & Entities: 1. Mountains. 2. Rivers. 3. Forests. 4. Clouds. 5. ________. 6. Cities. 7. Populations. 8. Streets. 9. Fire Hydrants.






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






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






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






19. 80 % of all information contain _________






20. A tabular file containing rows and columns; descriptive attributes about some object such as a geographic feature are contained in each row






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






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






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






24. The nature of relationships & connectivity between them.






25. Global Positioning System.






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






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






28. 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.






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






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






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






32. To avoid corrupt data!






33. Accuracy - reliability - responsibility.






34. Can not be made from other colors






35. Lines that connect points of equal value.






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






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






38. Connect & travel between landmarks by moving thru space.






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






40. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






41. Representative fraction






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






43. An assignment of geographic coordinates to locations.






44. 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






45. Points - Polygons - Lines






46. Are made with GIS






47. Geographic Coordinate System.






48. GIS is not a ______






49. Digital Elevation Model






50. Preserve Direction