GENERAL CIRCULATION – Air – DGCA Question Bank For Politics

#1. The polewards moving air piles up in the subtropical regions and forms high pressure belt at the surface, called

Subtropical high

Polar High

Equatorial high

#2. ______ occurs over subtropical high

advection

convection

subsidence

#3. The occurrence of large deserts near 30N and 30S are due to large scale

subsidence

convection

advection

#4. A part of the sinking air over the subtropical high flows towards the equator, turning west (in the northern hemisphere) due to the Coriolis force. This surface air is called

Trade winds

Roaring forties

Doldrums

#5. The huge vertical circulations, one between the equator and 30N and another between equator and 30S, are called

Hadley Cells

Ferrel Cells

Polar cells

#6. The descending branch of the Hadley cell marked by calm winds and high pressure at the surface are called

Tropical Latitudes

Middle latitudes

Horse Latitudes

#7. The winds in the upper troposphere are westerly. These are known as

Natural Westerlies

Steady Westerlies

Zonal Westerlies

#8. In the equatorial regions the upper tropospheric winds are

Westerlies

Easterlies

Zonal Westerlies

#9. The disturbances of middle latitudes move from

W to E

E to W

N to S

S to N

#10. The tropical disturbances which form in the equatorial low pressure belt move in

Easterly direction

Westerly direction

Southerly direction

#11. Tropical disturbance which reach the zone of transition in the upper level flow change course and begin to move in a

Perpendicular direction

Opposite direction

Southwards

#12. Latitudinally, on the average there is radiation ______ in the tropics than in the polar regions

surplus

deficit

balance

#13. The systems like highs, lows, cyclonic circulation etc are associated with distinct types of weather. A study of the behaviour of these systems, known as

Synoptic Meteorology

Climatology

Physical Meteorology

#14. Rising air creates calms or doldrums in the equatorial region.

ITCZ

Horse Latitudes

Equatorial Doldrums

#15. Steady NE winds in the N hemisphere and SE winds in the S hemisphere are called.

Easterly winds

Trade Winds

Tropical Winds

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