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|  AVIATION WEATHER
CHAPTER FIVE
20.
Which one of the following is not a of the classification used to describe icing?
a.
Light
b.
Moderate
c.
Severe
d.
Extreme
21.
Which one of the following conditions would most likely result in frost on an aircraft?
a.
Cloudy nights, 5 knots of wind, dew point 28 F
b.
Clear nights, no wind, dew point of 28 F
c.
Clear nights, 5 knots of wind, dew point of 32 F
d.
Cloudy nights, no wind, dew point of 37 F
22.
Which one of the following describes a basic type of fog classification?
a.
Air mass
b.
Advection
c.
Adiabatic
d.
All of the above are correct
23.
Which one of the following will result in the saturation of an air mass?
a.
Rising dew point
b.
Lowering humidity
c.
Lowering dew point
d.
Rising temperature
24. A layer of condensed water vapor is considered to be fog if its base is at or below 20 feet
above terrain elevation and greater than 50 feet in thickness.
a.
True
b.
False
25.
Radiation fog could be expected in areas characterized by_________________.
a.
low wind speed, and clear skies
b.
low wind speed, and cloudy skies
c.
high wind speed, and cloudy skies
d.
high wind speed, and clear skies
Weather Hazards of Turbulence, Icing, Ceilings, Visibility, and Ash Clouds
5-33
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