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|  AVIATION WEATHER
CHAPTER TWO
7.
Gradient winds move parallel to the isobars above 2000 feet AGL because they are not
affected by the_________________.
a.
pressure gradient force
b.
Coriolis force
c.
centrifugal force
d.
force of friction
8.
The surface wind, when compared with the gradient wind, is of____________________.
a.
lesser speed and blows parallel to the isobars
b.
lesser speed and blows across the isobars toward low pressure
c.
greater speed and blows across the isobars toward high pressure
d.
greater speed and blows across the isobars toward low pressure
9.
In the Northern Hemisphere, the wind blows_________________.
a.
from low to high pressure
b.
clockwise around a low
c.
counterclockwise around a low
d.
perpendicular to the isobars
10.
Gradient winds blow parallel to the isobars because of the__________________.
a.
Coriolis force
b.
frictional force
c.
centrifugal force
d.
wind force
11. The sea breeze blows from the _______ to the _______ during the _______, and the land
breeze blows from the _______ to the _______ during the _______.
a.
water, land, day; water, land, night
b.
land, water, day; land, water, night
c.
land, water, day; water, land, night
d.
water, land, day; land, water, night
12.
__________ and water vapor must be present in the atmosphere for precipitation to occur.
a.
Carbon dioxide
b.
Condensation nuclei
c.
Wind
d.
Atmospheric Mechanics of Winds, Clouds and Moisture, and Atmospheric Stability
2-25
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