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WorksheetsAviation Meterology
Total questions: 41
Worksheet time: 23mins
Which layer of the atmosphere contains almost all clouds and precipitation:
Thermosphere
Troposphere
Mesosphere
Occluded Front
when two air masses of different temperatures and humidity levels meet and stall, leading to prolonged periods of clouds and precipitation
form when a cold front overtakes a warm front, causing complex weather patterns including a mix of rain, snow, and thunderstorms
the point at which air holds the maximum amount of water vapor it can at a given temperature and pressure
What is the altitude of the troposphere:
36,000 feet
46,000 feet
26,000 feet
Which cloud form often produced widespread IFR weather:
Stratus
Stratiform
Cirrus
air circulating counterclockwise as it flows into the center
Low pressure system
High pressure system
Sea level temp
10 degrees celcius
15 degrees celcius
20 degrees celcius
What is the outer most layer:
Thermosphere
Mesosphere
Exosphere
What are the characteristics of rime ice:
Glossy, clear
Translucent
Rough, milky
How do you escape icing
Exit area of visible moisture
climb to altitudes where temperatures are too cold for icing
Descend to positive temperatures
All of the above
What ice type is simultaneous appearance or a combination of rime and glaze ice characteristics. Since the clarity, color, and shape of the ice will be a mixture of rime and clear characteristics accurate identification of mixed ice from the cockpit may be difficult.
(a)
Any deposit of ice forming on an aircraft object caused by impingement and freezing of liquid hydrometers
(a)
What is airmet SERRIA
IFR and extensive mountain obscuration.
moderate turbulence, sustained surface winds greater than 30 knots, and non-convective low-level wind shear (LLWS) potent
moderate icing and freezing levels
Types of structural icing
Rime
Clear
Mixed
What dose water vapor, unstable air, and lift cause
Turbulence
Thunderstorms
Hail
A downburst is a strong downdraft that induces an outburst of damaging winds on or near the ground
True
False
Low level wind shear is a wind shear below 2,000 feet AGL, other than convectively induced, and exceeds 10 knots per 100 feet
True
False
What type of turbulence is caused by any obstruction to the wind such,
such as buildings or mountains
Mechanical
Convective
Clear air turbulence
What turbulence results from convective storms, particularly thunderstorms that are felt by aircraft
Convective turbulence
Aircraft turbulence
Clear air turbulence
What level of turbulence causes changes in altitude and/or altitude occur, but the aircraft remains in positive control at all times
Light
Moderate
Extreme
An atmospheric gravity wave formed when stable air flow passes over a mountain or mountain barrier. They develop above and downwind of mountains.
Mountain wave
Mechanical turbulence
convective turbulence
CAT frequency and intensity are maximized during the winter when jet streams are the strongest
True
False
High density altitude
air density is reduced, which has an adverse impact on aircraft performance. It reduces power and thrust. also longer takeoff and landing roll are required.
conditions where the air is denser than standard atmospheric conditions.
Jet Stream
very strong winds in the high part of the atmosphere, anywhere between 5 to 7 miles up.
Can be more than 200mph
Thousands of miles long and hundreds of miles wide
The jet stream is strongest during the winter
What is AWOS
Automated weather observing station
Automated surface observing system
Automated weather sensor system.
What is a METAR
surface observing system
Meteorological Aerodrome Report.
weather observing station
A PIREP is a special report of meteorological conditions, issued when one or more elements meet specified criteria significant to aviation
True
False
What is GR on a Metar
Mist
Ice
Hail
What is PL on a METAR
Ice pellets
Precipitation
Pressure lowering
SIGMETs are issued for thunderstorms, severe turbulence, severe icing, widespread sandstorms, volcanic ash
True
False
What is Airmet TANGO
IFR and extensive mountain obscuration
moderate turbulence, sustained surface winds greater than 30 knots, and non-convective low-level wind shear (LLWS) potent.
moderate icing and freezing levels
What is airmet ZULU
form IFR and extensive mountain obscuration
moderate turbulence, sustained surface winds greater than 30 knots, and non-convective low-level wind shear (LLWS) potent
for moderate icing and freezing levels
A Center Weather Advisory (CWA) is an unscheduled weather advisory
True
False
What is FB
Wind and temperature aloft forecast
used by ATC to help avoid clear air turbulence created by crosswinds to the flight paths of aircraft
in flight advisory concerning weather that is potentially Hazardous to aircraft
Below freezing temperatures
What classification is UA for a PIREP
Urgent
Routine
Unstable Air
All received PIREPS are classified as routine except those classified as urgent
False
True
What is a ceiling
extends from 53 miles to 375 miles above the earth, as high as 3600 degrees F at the top.
is a layer in which temperature increases with altitude
the lowest layer aloft reported as broken or overcast, of the vertical visibility into indefinite ceiling
What is a high-pressure system
air circulating counter clockwise as it flows into the center
air that circulates clockwise as it flows away from the center
A large body of air with generally uniform temperature and humidity
(a)
Cold front
cold air displaces warm air, often causing a drop in temperature, and can lead to heavy rain, thunderstorms, or even snow
warm air moves over cold air, bringing gradual temperature increases and light to moderate rainfall
when two air masses of different temperatures and humidity levels meet and stall, leading to prolonged periods of clouds and precipitation
Saturation
When air masses of different temperatures and humidity levels meet and stall
the changes an air mass undergoes as it moves away from its source region
the point at which air holds the maximum amount of water vapor it can at a given temperature and pressure
What is the value of sea level pressure in the standard atmosphere
30.30
29.92
29.94
29.91
