Aviation Weather Exam 3 Questions And
Answers Already Graded A+
Mountains can produce .................... . CORRECT ANSWERS mechanical turbulence
Mountain waves can form .......................... CORRECT ANSWERS well into tropopause
A warm downslope wind is known as .................... CORRECT ANSWERS Chinook wind
What is a likely location of clear air turbulence? CORRECT ANSWERS In an upper
trough on the polar side of a jetstream.
Rotor clouds form on the ........................ of the mountain. CORRECT ANSWERS lee or
downstream side
Turbulence encountered above 15,000 feet AGL, not associated with cloud formations,
should be reported as CORRECT ANSWERS clear air turbulence.
Upper level ridge can also produce clear air turbulence (CAT). CORRECT ANSWERS
True
Intensity of the turbulence is measured by a variable called "....................................."
CORRECT ANSWERS Eddy Dissipation Rate
....................................... wind shear can produce turbulence. CORRECT ANSWERS
both horizontal and vertical
Which locations should you include in your expected areas of CAT? (Choose all that
apply.) CORRECT ANSWERS A, B and C --
A. Poleward (cold) side of the jet streaks
B. Anticyclonic turning in the jet along the ridge axis
C. T-bone or merging jet stream
The following atmospheric condition is required to form mountain waves: CORRECT
ANSWERS All of the Above --
A. wind should be 40 knots or more with near to perpendicular to mountain
B. wind speed should increase with height
C. temperature inversion near to mountain top or below
The Rocky Mountains produce waves that may impact .......................... CORRECT
ANSWERS B and C --
B.eastern Colorado
C. Western Kansas
, What is the name of this cloud? CORRECT ANSWERS lenticular clouds
Aircraft generate vortices and turbulence. CORRECT ANSWERS True
An abrupt change in wind direction and/or speed in a short distance is known as
CORRECT ANSWERS wind shear
As a general principle, the jet stream .................... mountain waves. CORRECT
ANSWERS enhances
Where are jetstreams normally located? CORRECT ANSWERS At the tropopause
where intensified temperature gradients are located.
Clouds are associated with Mountain Waves, but not always. CORRECT ANSWERS
True
Cloud forming over the mountain peak due to orographic lifting is called ................
cloud. CORRECT ANSWERS cap
Mountain waves are frequent and stronger in .......................... CORRECT ANSWERS
winter and early spring
Strong updraft occurs in stratosphere inside thunderstorms. CORRECT ANSWERS
False
What would you expect to observe during the passage of a gust front? CORRECT
ANSWERS Temperatures will drop and winds will become strong and gusty.
What is the name of cloud systems that are characterized as "long-lived clusters of
thunderstorms that can be easily identified by infrared satellite, cover large areas
(~90,000 square miles), lasting more than 12 hours". CORRECT ANSWERS Mesoscale
convective system
What are the common weather conditions in or around thunderstorms? CORRECT
ANSWERS turbulence, icing, strong updraft and downdraft
Thunderstorms only last about one hour and begin to dissipate when ____. CORRECT
ANSWERS when the downdraft spreads throughout the cloud and cuts off the updraft
Not all thunderstorm clouds produce hail and tornadoes. CORRECT ANSWERS true
Beneath an intense thunderstorm, the downdraft may become localized so that it hits
the ground and spreads horizontally in a radial burst of wind. This is called a ____.
CORRECT ANSWERS downburst
Answers Already Graded A+
Mountains can produce .................... . CORRECT ANSWERS mechanical turbulence
Mountain waves can form .......................... CORRECT ANSWERS well into tropopause
A warm downslope wind is known as .................... CORRECT ANSWERS Chinook wind
What is a likely location of clear air turbulence? CORRECT ANSWERS In an upper
trough on the polar side of a jetstream.
Rotor clouds form on the ........................ of the mountain. CORRECT ANSWERS lee or
downstream side
Turbulence encountered above 15,000 feet AGL, not associated with cloud formations,
should be reported as CORRECT ANSWERS clear air turbulence.
Upper level ridge can also produce clear air turbulence (CAT). CORRECT ANSWERS
True
Intensity of the turbulence is measured by a variable called "....................................."
CORRECT ANSWERS Eddy Dissipation Rate
....................................... wind shear can produce turbulence. CORRECT ANSWERS
both horizontal and vertical
Which locations should you include in your expected areas of CAT? (Choose all that
apply.) CORRECT ANSWERS A, B and C --
A. Poleward (cold) side of the jet streaks
B. Anticyclonic turning in the jet along the ridge axis
C. T-bone or merging jet stream
The following atmospheric condition is required to form mountain waves: CORRECT
ANSWERS All of the Above --
A. wind should be 40 knots or more with near to perpendicular to mountain
B. wind speed should increase with height
C. temperature inversion near to mountain top or below
The Rocky Mountains produce waves that may impact .......................... CORRECT
ANSWERS B and C --
B.eastern Colorado
C. Western Kansas
, What is the name of this cloud? CORRECT ANSWERS lenticular clouds
Aircraft generate vortices and turbulence. CORRECT ANSWERS True
An abrupt change in wind direction and/or speed in a short distance is known as
CORRECT ANSWERS wind shear
As a general principle, the jet stream .................... mountain waves. CORRECT
ANSWERS enhances
Where are jetstreams normally located? CORRECT ANSWERS At the tropopause
where intensified temperature gradients are located.
Clouds are associated with Mountain Waves, but not always. CORRECT ANSWERS
True
Cloud forming over the mountain peak due to orographic lifting is called ................
cloud. CORRECT ANSWERS cap
Mountain waves are frequent and stronger in .......................... CORRECT ANSWERS
winter and early spring
Strong updraft occurs in stratosphere inside thunderstorms. CORRECT ANSWERS
False
What would you expect to observe during the passage of a gust front? CORRECT
ANSWERS Temperatures will drop and winds will become strong and gusty.
What is the name of cloud systems that are characterized as "long-lived clusters of
thunderstorms that can be easily identified by infrared satellite, cover large areas
(~90,000 square miles), lasting more than 12 hours". CORRECT ANSWERS Mesoscale
convective system
What are the common weather conditions in or around thunderstorms? CORRECT
ANSWERS turbulence, icing, strong updraft and downdraft
Thunderstorms only last about one hour and begin to dissipate when ____. CORRECT
ANSWERS when the downdraft spreads throughout the cloud and cuts off the updraft
Not all thunderstorm clouds produce hail and tornadoes. CORRECT ANSWERS true
Beneath an intense thunderstorm, the downdraft may become localized so that it hits
the ground and spreads horizontally in a radial burst of wind. This is called a ____.
CORRECT ANSWERS downburst
