WX301 Exam 3 Questions and Answers
100% Pass
Cumulonimbus clouds appear _____ on visible satellite imagery and ________ on
infrared satellite imagery - ✔✔bright; bright
Who issues Convective SIGMETs? - ✔✔Aviation Weather Center
Who issues Storm watches and warnings? - ✔✔Storm Prediction Center
What is the critical thickness rule of thumb? - ✔✔5400m
Cirrus clouds appear _____ on visible imagery and ______ on infrared satellite imagery.
- ✔✔dark; bright
Where is the heaviest snowfall most likely to occur near a surface cyclone? - ✔✔To the
Northwest of the Low
Most lightning strikes are located near a storm's region of strongest _______ -
✔✔updrafts
Greatest thunderstorm potential would yield - ✔✔High CAPE, Negative LI, and High
KI
Stratus clouds or altostratus clouds are likely to occur where the visible imagery is
______ and infrared imagery is _______ - ✔✔bright; dark
________ satellite imagery shows reflected sunlight - ✔✔Visible
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 1
, What does VCP mean? - ✔✔Volume Coverage Pattern
What is a VCP? - ✔✔A setting for the radar scanner. A number in the 30s indicates clear
air mode
What is a radar mosaic? - ✔✔A combination of individual radar sites' readings
What is the difference between clear air mode and precipitation mode for a radar
scanner? - ✔✔Clear air mode has less frequent updates and detects small returns while
precipitation mode has more frequent updates but may miss small amounts of
precipitation
Type I fluid is used for _______ and is ________ in color. - ✔✔de-ice; red/orange
Type IV fluid is used for _______ and is ________ in color. - ✔✔anti-ice; green
Moderate snowfall is considered to have a visibility between ____ SM and ______ SM -
✔✔1/4; 1/2
Does snowfall intensity solely determine icing risk? - ✔✔No
The greatest icing threat occurs between _____ degrees C and _____ degrees C. - ✔✔0; -
20
What determines icing severity for the aircraft's wing? - ✔✔Wing geometry, Aircraft
Speed, Aircraft Surface Temperature, Exposure Time, Liquid Water Content, Air
Temperature, Droplet size (smaller drops flow around the wing more often than bigger
drops), and Updraft presence
Icing potential is highest for... - ✔✔Cold A/C with thin wings flying through a cloud
with large droplets and a high liquid water content at high speed for a long time
What icing product is the best product for operation decision making? - ✔✔G-AIRMET
ICE
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 2
100% Pass
Cumulonimbus clouds appear _____ on visible satellite imagery and ________ on
infrared satellite imagery - ✔✔bright; bright
Who issues Convective SIGMETs? - ✔✔Aviation Weather Center
Who issues Storm watches and warnings? - ✔✔Storm Prediction Center
What is the critical thickness rule of thumb? - ✔✔5400m
Cirrus clouds appear _____ on visible imagery and ______ on infrared satellite imagery.
- ✔✔dark; bright
Where is the heaviest snowfall most likely to occur near a surface cyclone? - ✔✔To the
Northwest of the Low
Most lightning strikes are located near a storm's region of strongest _______ -
✔✔updrafts
Greatest thunderstorm potential would yield - ✔✔High CAPE, Negative LI, and High
KI
Stratus clouds or altostratus clouds are likely to occur where the visible imagery is
______ and infrared imagery is _______ - ✔✔bright; dark
________ satellite imagery shows reflected sunlight - ✔✔Visible
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 1
, What does VCP mean? - ✔✔Volume Coverage Pattern
What is a VCP? - ✔✔A setting for the radar scanner. A number in the 30s indicates clear
air mode
What is a radar mosaic? - ✔✔A combination of individual radar sites' readings
What is the difference between clear air mode and precipitation mode for a radar
scanner? - ✔✔Clear air mode has less frequent updates and detects small returns while
precipitation mode has more frequent updates but may miss small amounts of
precipitation
Type I fluid is used for _______ and is ________ in color. - ✔✔de-ice; red/orange
Type IV fluid is used for _______ and is ________ in color. - ✔✔anti-ice; green
Moderate snowfall is considered to have a visibility between ____ SM and ______ SM -
✔✔1/4; 1/2
Does snowfall intensity solely determine icing risk? - ✔✔No
The greatest icing threat occurs between _____ degrees C and _____ degrees C. - ✔✔0; -
20
What determines icing severity for the aircraft's wing? - ✔✔Wing geometry, Aircraft
Speed, Aircraft Surface Temperature, Exposure Time, Liquid Water Content, Air
Temperature, Droplet size (smaller drops flow around the wing more often than bigger
drops), and Updraft presence
Icing potential is highest for... - ✔✔Cold A/C with thin wings flying through a cloud
with large droplets and a high liquid water content at high speed for a long time
What icing product is the best product for operation decision making? - ✔✔G-AIRMET
ICE
COPYRIGHT © 2025 BY BRITTIE DONALD, ALL RIGHTS RESERVED 2
