Remote Sensing Questions Chapter 2

  1. What is the oldest and has been the most frequently used remote sensing instrument?
  2. Who, when, and where was the use of the first airborne remote sensing system?
  3. Who, when, and where was the use of the first airborne remote sensing system in the U.S.?
  4. Which category of air photo is required for accurate mapping?
  5. What is the advantage of overlapping vertical airphotos?
  6. What are the characteristics of an oblique airphoto?
  7. What are the parts of a frame camera?
  8. In a framing camera, at what locations is the film positioned?
  9. Answer question 1 on page 50.
  10. What number represents faster lenses?
  11. What number represents larger openings with more admitted light?
  12. Answer question 2 on page 50.
  13. Answer question 3 on page 50.
  14. Answer question 4 on page 50.
  15. Why are fast-speed lenses good for low light photography?
  16. What effect does increased camera height have on ground distance?
  17. How does a mapping camera differ from a regular camera?
  18. How is image blur avoided by mapping cameras?
  19. Why are fiducial marks important on air photos?
  20. What data may be photographed along with the ground scene?
  21. What are the two basic configurations of cameras for taking multiband photos?
  22. What are the four main types of Kadak terrestrial and aerial films?
  23. How do terrestrial and aerial films differ?
  24. What are the three layers in black and white film?
  25. What is the relationship between photochemical reaction of film, latent image, and film development?
  26. What are the four steps in black-and-white film development?
  27. What is the advantage of extended red sensitivity?
  28. Differentiate between true and modified infrared photographs.
  29. What are the two types of color films?
  30. Which of the above needs to undergo a negative-to-positive process to be most useful for interpretation?
  31. Which type is used in remote sensing?
  32. What colors, according to the Young-Helmholtz theory, can be added to make all colors?
  33. How many layers does color film have?
  34. What are the steps in developing color film?
  35. What film was called camouflage-detection film?
  36. How is a resolution test target or chart used?
  37. What controls the system resolution?
  38. Answer question 5 on page 50.
  39. Answer question 6 on page 50.
  40. What factors influence ground resolution?
  41. What is the major disadvantage of fast film?
  42. What is the major disadvantage of slow film?
  43. What are the two rating scales for terrestrial film?
  44. What film rating is used for aerial film?
  45. What is used instead of a light meter for aerial film?
  46. What is the effect on exposure times if a filter is used?
  47. Comment about the differences on the photographs on page 39.
  48. What six factors should be considered in determining film selection?
  49. What kind of film best penetrates clear water?
  50. What identifications are best made with normal color film?
  51. What is the largest single cost in obtaining new aerial photography?
  52. What causes stress in vegetation?
  53. What are the stages of vegetation stress?
  54. Why are clear water bodies rendered very dark with black-and-white infrared?
  55. When is color infrared best used?
  56. Answer question 7 on page 50.
  57. Why are shadows black on color infrared film?
  58. What are two types of special types of photography?
  59. What are two notable usages of ultraviolet photography?
  60. Answer question 8 on page 50.