Quiz: Weather Theory 1

2

Weather Theory 1

PA.I.C.K3 Meteorology applicable to the departure, en route, alternate, and destination under VFR in Visual Meteorological Conditions (VMC) to include expected climate and hazardous conditions such as:

PA.I.C.K3a Atmospheric composition and stability

PA.I.C.K3b Wind (e.g., crosswind, tailwind, windshear, mountain wave, etc.)

PA.I.C.K3c Temperature

PA.I.C.K3d Moisture/precipitation

PA.I.C.K3e Weather system formation, including air masses and fronts 

PA.I.C.K3f Clouds

PA.I.C.K3g Turbulence

PA.I.C.K3h Thunderstorms and microbursts

PA.I.C.K3i Icing and freezing level information

PA.I.C.K3j Fog/mist

PA.I.C.K3k Frost

PA.I.C.K3l Obstructions to visibility (e.g., smoke, haze, volcanic ash, etc.)

1 / 70

1. Why is frost considered hazardous to flight?

2 / 70

2. How does frost affect the lifting surfaces of an airplane on takeoff?

3 / 70

3. Which conditions result in the formation of frost?

4 / 70

4. How will frost on the wings of an airplane affect takeoff performance?

5 / 70

5. What types of fog depend upon wind in order to exist?

6 / 70

6. What situation is most conducive to the formation of radiation fog?

7 / 70

7. In which situation is advection fog most likely to form?

8 / 70

8. Low-level turbulence can occur and icing can become hazardous in which type of fog?

9 / 70

9. Clouds, fog, or dew will always form when

10 / 70

10. The presence of ice pellets at the surface is evidence that there

11 / 70

11. In which environment is aircraft structural ice most likely to have the highest accumulation rate?

12 / 70

12. One in-flight condition necessary for structural icing to form is

13 / 70

13. You are avoiding a thunderstorm that is in your flightpath. You are over 20 miles from the cell; however, you are under the anvil of the cell. Is this a hazard?

14 / 70

14. The destination airport has one runway, 8-26, and the wind is calm. The normal approach in calm wind is a left-hand pattern to runway 8. There is no other traffic at the airport. A thunderstorm about 6 miles west is beginning its mature stage, and rain is starting to reach the ground. The pilot decides to

15 / 70

15. The mature stage of a thunderstorm begins with

16 / 70

16. Which weather phenomenon is always associated with a thunderstorm?

17 / 70

17. Thunderstorms which generally produce the most intense hazard to aircraft are

18 / 70

18. Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?

19 / 70

19. What feature is normally associated with the cumulus stage of a thunderstorm?

20 / 70

20. Thunderstorms reach their greatest intensity during the

21 / 70

21. During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?

22 / 70

22. What conditions are necessary for the formation of thunderstorms?

23 / 70

23. A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as a

24 / 70

24. If there is thunderstorm activity in the vicinity of an airport at which you plan to land, which hazardous atmospheric phenomenon might be expected on the landing approach?

25 / 70

25. Upon encountering severe turbulence, which flight condition should the pilot attempt to maintain?

26 / 70

26. If an unstable air mass is forced upward, what type clouds can be expected?

27 / 70

27. When warm, moist, stable air flows upslope, it

28 / 70

28. Cumulus clouds often indicate

29 / 70

29. What is the approximate base of the cumulus clouds if the surface air temperature at 1,000 feet MSL is 70°F and the dewpoint is 48°F?

30 / 70

30. What cloud types would indicate convective turbulence?

31 / 70

31. At approximately what altitude above the surface would the pilot expect the base of cumuliform clouds if the surface air temperature is 82°F and the dewpoint is 38°F?

32 / 70

32. What clouds have the greatest turbulence?

33 / 70

33. The conditions necessary for the formation of cumulonimbus clouds are a lifting action and

34 / 70

34. The suffix “nimbus,” used in naming clouds, means

35 / 70

35. Clouds are divided into four families according to their

36 / 70

36. The distance measured in millibars separating isobars on surface analysis charts is typically

37 / 70

37. One of the most easily recognized discontinuities across a front is

38 / 70

38. One weather phenomenon which will always occur when flying across a front is a change in the

39 / 70

39. The boundary between two different air masses is referred to as a

40 / 70

40. Temperature and radiation variations over land with a clear sky typically lead to

41 / 70

41. An increase in temperature with an altitude increase

42 / 70

42. Which weather conditions should be expected beneath a low-level temperature inversion layer when the relative humidity is high?

43 / 70

43. When there is a temperature inversion, you would expect to experience

44 / 70

44. The most frequent type of ground or surface-based temperature inversion is that which is produced by

45 / 70

45. What feature is associated with a temperature inversion?

46 / 70

46. What are the processes by which moisture is added to unsaturated air?

47 / 70

47. The amount of water vapor which air can hold depends on the

48 / 70

48. What is meant by the term “dewpoint”?

49 / 70

49. If the temperature/dewpoint spread is small and decreasing, and the temperature is 62°F, what type weather is most likely to develop?

50 / 70

50. Every physical process of weather is accompanied by, or is the result of, a

51 / 70

51. When may hazardous wind shear be expected?

52 / 70

52. A pilot can expect a wind-shear zone in a temperature inversion whenever the wind speed at 2,000 to 4,000 feet above the surface is at least

53 / 70

53. Where does wind shear occur?

54 / 70

54. Possible mountain wave turbulence could be anticipated when winds of 40 knots or greater blow

55 / 70

55. Crests of standing mountain waves may be marked by stationary, lens-shaped clouds known as

56 / 70

56. An almond or lens-shaped cloud which appears stationary, but which may contain winds of 50 knots or more, is referred to as

57 / 70

57. The wind at 5,000 feet AGL is southwesterly while the surface wind is southerly. This difference in direction is primarily due to

58 / 70

58. Clouds with extensive vertical development over mountainous terrain are a sign of

59 / 70

59. What are the characteristics of an unstable atmosphere?

60 / 70

60. What would decrease the stability of an air mass?

61 / 70

61. The stability of an air mass can usually be determined by

62 / 70

62. What measurement can be used to determine the stability of the atmosphere?

63 / 70

63. What are characteristics of a moist, unstable air mass?

64 / 70

64. Steady precipitation preceding a front is an indication of

65 / 70

65. A stable air mass is most likely to have which characteristic?

66 / 70

66. What are characteristics of unstable air?

67 / 70

67. What is a characteristic of stable air?

68 / 70

68. Convective circulation patterns associated with sea breezes are caused by

69 / 70

69. The development of thermals depends upon

70 / 70

70. What causes variations in altimeter settings between weather reporting points?

Your score is

Ready to learn?

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}
>