Question Bank

1. Fog is ______ cloud on ground

2. When visibility reduces between 5000m and 1000m and RH is almost 100%, it is

3. Advection fog forms during

4. Instrument used for measuring visibility is called

5. For formation of Radiation fog

6. Advection fog forms

7. The radiation fog forms over

8. Frontal Fog is more common with a

9. Fog is ______ cloud on ground

10. The radiation fog forms due to

11. Frontal Fog is more common with a

12. Fog is reported when visibility is reduced to

13. Frontal Fog is more common with a

14. Warm and moist air moving over a cold surface causes

15. The _____ fog forms due to horizontal movement of warm moist air over cold surface

16. For formation of Radiation fog

17. The _____ fog forms due to horizontal movement of warm moist air over cold surface

18. The favourable pressure system for formation of fog is

19. RVR is reported when visibility falls below

20. Radiation fog occurs

21. Advection fog forms during

22. The radiation fog forms over

23. Radiation fog is essentially a ______ phenomena

24. The radiation fog activity increases after the passage of a

25. Warm and moist air moving over a cold ground gives rise to

26. Advection fog forms

27. Radiation Fog forms over N India during

28. Instrument used for measuring visibility is called

29. Thermal processes/temperature distribution which favours formation of fog is