A report of meteorological
phenomena encountered by aircraft
in flight is called a(n) ________. – answer PIREP
PIREPs are the only means of
precisely determining ________ and
________ weather conditions. - answer icing; turbulence
When the ceiling is at or below 5,000
feet and the visibility is less than 5
miles, controllers are obligated to
_________ PIREPs. - answer solicit
A decrease of temperature with an
increase in height is called an
________. - answerlapse rate
An altimeter depicts indicated
altitude, which is altitude expressed
as height above ________. - answersea level
Two types of barometers used to
measure atmospheric pressure are
_________ and _________. - answermercurial; aneroid
In a METAR, temperature and dew point
are shown in whole degrees ________. - answerCelsius
Anticipate _______ when temperaturedewpoint
spread is 5 degrees of less and
decreasing. - answerfog
An increase in temperature of the
atmosphere with an increase of
altitude height defines a(n)
________. - answerinversion
Weather advisories issued to amend
an area forecast regarding weather
, phenomena that are of operational
interest to all aircraft and potentially
hazardous to aircraft are classified as
________. - answerAIRMETs
Weather advisories issued for
extreme turbulence and severe icing
are classified as ________. - answerSIGMETs
Advisories for existing and forecast
weather involving tornadoes,
embedded thunderstorms are
classified as ________. - answerConvective SIGMETs
In the troposphere, the lapse rate is
approximately _______°C per one
thousand feet. - answer2
Convective currents are the result of
________. - answeruneven heating of the earth
Air is deflected to the right in the
Northern Hemisphere and to the left
in the Southern Hemisphere due to
________. - answerCoriolis force
In the Northern Hemisphere, air
movement around a low pressure center
flows in a(n) _________ direction. - answercounterclockwise
The uneven heating of adjacent
bodies of air causing warm air to be
drawn upward and more dense air
downward defines _______. - answerconvection currents
A narrow, high-speed, meandering
band of air moving at a high altitude
is called a _______. - answerjet stream
What are the two basic
classifications of clouds? - answercumuliform and stratiform
Clouds formed by vertical currents of
unstable air are called ________
clouds. - answercumulus
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