Question Bank

1. Sea breeze sets in by ______ and dies off at _____

2. Rotor clouds have extremely turbulent flying conditions

3. Lines of constant wind speed drawn on weather charts are called

4.

The resultant wind that blows under the influence of pressure gradient force, geostrophic force and cyclostrophic force is called

5. Due to friction, from day to night for an isobaric pattern (in N hemisphere) the surface wind backs and weakens

6. A change in wind direction from 310° to 020° is

7. Katabatic wind occur due to sinking of cold air down the hill slope

8. Anabatic wind occurs

9. Sea breeze is stronger than land breeze

10. The wind sliding down a hill during night is called ______ wind

11. Katabatic wind is down slope cold wind due to nocturnal cooling

12. Anabatic wind is stronger than katabatic

13. Anabatic wind occur due to downward movement of air along valley

14. Lower level wind 05010 kt, upper level wind 23005 kt, what is the thermal wind

15. The wind blows anticlockwise around a low in N-hemisphere

16. A significant wind shear is generally associated with TS or line squall

17. Gradient wind is ____ of the geostrophic wind in an anticyclone

18. With the onset of sea breeze there is a _____ in temperature and ____ in RH

19. In N-Hemisphere if you experience Port drift, altimeter will read

20. The inertial flow is

21. Gale is

22. Squall are distinguished from gusts by

23. Fohn winds are ____ on the Leeward side of a mountain

24. Upper level wind is 24025 kt, lower level wind is 06015 kt, the thermal wind is?

25. Coriolis force is strongest at

26. If the S is warmer than the N, level by level, from surface up to higher levels, then the ____ wind will strengthen with height with no change in direction in N hemisphere

27. The wind blows clockwise around a low in N-hemisphere

28. The wind blows clockwise around a low in S-hemisphere

29. A change from 270° to 250° is

30. Sudden change in wind speed from 10 kt to 30 kt for 2 -3 minutes

31. If an aircraft in N-hemisphere flies from H to L it will experience

32. Cyclostrophic wind gives a good approximation of the 2000' wind in an intense tropical storm

33. Geostrophic wind is due to the balance between the forces

34. Friction causes winds to flow cross isobaric by _____ over land and ____ over sea

35. Geostrophic rule breaks down at

36. Coriolis force acts perpendicular to the _____ of wind direction in N hemisphere

37. In N hemisphere due to rotation of earth winds are deflected to

38. In N hemisphere thermal wind is parallel to ____ with low value to left

39. The wind blows anticlockwise around a low in S-hemisphere

40. The wind which spirals inward counter-clockwise in the N Hemisphere are associated with

41. In S hemisphere if an observer faces wind, low will be to his ____

42. Local Winds follow Buys Ballots law

43. The thermal wind is

44. On a weather map if isobars are closely packed, the surface winds are likely to be

45. Sudden change in wind speed form 10kt to 30kt an then 15 kt are