Multiple Choice QuestionsWhich one of the following winds fall in the Zone of Hadley Cell ?
Monsoon winds
Trade winds
Westerlies
Polar winds
Which one of the following is correct , when the combined effect of the pressure gradient force and coriolis force on air current produces ?
Deflection force
Geostrophic force
Frictional force
Gravitational force
The term adiabatic change of temperature stands for
Fall of temperature after precipitation
Heating and cooling of an ascending or descending air through compression of expansion
Heating of ascending air
Cooling of descending air
What are the effects of the low level temperature inversion occuring in cool nights over the urban areas ?
(a) Entrapment of pollutants causing heavily smog
(b) Pleasant weather conditions
(c) Unusually unstable air
(d) Unusually stable air
(a) and (c)
(b) and (c)
(a) and (d)
(b) and (d)
The "Ice Crystal Theory" related to precipitation was propounded by
Boven
Muir
Peterson
Bergeron
Energy that is reflected by the atmosphere
does not heat the atmosphere
has a different wavelength than the incoming energy
is usually short energy like visible light which does not penetrate the atmosphere.
heats the atmosphere by absorption
Which one of the following statements about the polar jet stream is not true ?
It moves northwards during summer
It supplies energy to the circulation of surface storms
Its location roughly coincides with that of the polar front.
Its velocity is greater during summer.
Th eprcentage of water vapour in the air in the tropical regions may be as high as
4%
10%
30%
50%
The vertical air flow in an anticyclone results in
diversion aloft
conversion aloft
diversion both aloft and at the surface
convergence at the surface and divergence aloft
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