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. Geographic Coordinate System.






2. Are made with GIS






3. Provide information about a particular topic or theme.






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






5. Accuracy - reliability - responsibility.






6. 2 ______: 1. Files/records. 2. Database/collection of files.






7. To avoid corrupt data!






8. 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






9. 3 ______ attributes: 1. Values. 2. Relations. 3. Quality.






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






11. 80 % of all information contain _________






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






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






14. Sailors and pilots use these maps to navigate






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






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






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






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






19. A Complete frame






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






21. The nature of relationships & connectivity between them.






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






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






24. 36 Spatial Res: 250m Temporal Res: 1 day Swath Width: 2 -330km






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






26. Assigning location information to text & discourse.






27. 2 common _______: 1. Vector. 2. Raster.






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






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






30. A reference system (geographic coordinates)






31. Description by name: ex London






32. Most popular form of USGS Map






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






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






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






36. Precision of a measurement with respect to time






37. Google Maps or Microsoft Bing.






38. Smoothing & Shape abstraction.






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






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






41. Can not be made from other colors






42. 1. E - Ellipsoid dimensions. 2. D - Datum origin. 3. A - Angular alignment.






43. The ability to link files together.






44. Arcs only ___ at Nodes






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






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






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






48. When parallels & meridians intersect at right angles.






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






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