Test your basic knowledge |

GIS: Geographic Information Systems

Subject : it-skills
  • 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.