ATSC 231 Final Exam UPDATED ACTUAL
Questions and CORRECT Answers
The Local agency responsible for predicting weather - CORRECT ANSWER - WFO
The type of aircraft operations that experience the highest percentage of turbulence related
accidents - CORRECT ANSWER - 121
The aerodynamic force that is most affected by structural ice - CORRECT ANSWER -
drag
The type of aircraft operations that experience the highest percentage of accidents resulting from
low ceiling and visibility - CORRECT ANSWER - 135
Type of hydrometeor that reflects least radar energy - CORRECT ANSWER - Dry Snow
One very large single cell thunderstorm that typically produces a tornado - CORRECT
ANSWER - Supercell
This contraction used in a metar to indicate a station that can discriminate precipitation -
CORRECT ANSWER - AO2
The intensity of turbulence that may cause structural damage - CORRECT ANSWER -
Extreme
One of three places where SLD's are common - CORRECT ANSWER - Below Melting
Layer, Cumulus Clouds, Right at top of clouds
An instrumentally derived value that represents the horizontal distane a pilot will see down the
runway. it is based on the sighting of HIRL. - CORRECT ANSWER - RVR
, The Direction the wind blows around low pressure systems in the Northern Hemisphere -
CORRECT ANSWER - Counter Clockwise
The distance by which severe storms should be avoided - CORRECT ANSWER - 20 miles
An inflight advisory that provides a forecast of non-convective weather that is hazardous to all
aircraft - CORRECT ANSWER - Sigmet
The time of year that a deep layer of convective turbulence forms - CORRECT
ANSWER - Summer
The type of solution used to de ice aircraft - CORRECT ANSWER - 4 or 2
The height of a cumulus cloud base if the surface temperature were 25 and dew point 10 -
CORRECT ANSWER - 6000
The type of satellite imagery that best shows shadows - CORRECT ANSWER - visible
The time of day for peak thunderstorm activity over ND - CORRECT ANSWER - Late
Night
The height of the 700 mb surface - CORRECT ANSWER - 10000ft
One of two locations where high altitude CAT is most common - CORRECT ANSWER -
Tropopause or Upper Front
The type of ice most common in cumulus - CORRECT ANSWER - Glaze/Clear
Questions and CORRECT Answers
The Local agency responsible for predicting weather - CORRECT ANSWER - WFO
The type of aircraft operations that experience the highest percentage of turbulence related
accidents - CORRECT ANSWER - 121
The aerodynamic force that is most affected by structural ice - CORRECT ANSWER -
drag
The type of aircraft operations that experience the highest percentage of accidents resulting from
low ceiling and visibility - CORRECT ANSWER - 135
Type of hydrometeor that reflects least radar energy - CORRECT ANSWER - Dry Snow
One very large single cell thunderstorm that typically produces a tornado - CORRECT
ANSWER - Supercell
This contraction used in a metar to indicate a station that can discriminate precipitation -
CORRECT ANSWER - AO2
The intensity of turbulence that may cause structural damage - CORRECT ANSWER -
Extreme
One of three places where SLD's are common - CORRECT ANSWER - Below Melting
Layer, Cumulus Clouds, Right at top of clouds
An instrumentally derived value that represents the horizontal distane a pilot will see down the
runway. it is based on the sighting of HIRL. - CORRECT ANSWER - RVR
, The Direction the wind blows around low pressure systems in the Northern Hemisphere -
CORRECT ANSWER - Counter Clockwise
The distance by which severe storms should be avoided - CORRECT ANSWER - 20 miles
An inflight advisory that provides a forecast of non-convective weather that is hazardous to all
aircraft - CORRECT ANSWER - Sigmet
The time of year that a deep layer of convective turbulence forms - CORRECT
ANSWER - Summer
The type of solution used to de ice aircraft - CORRECT ANSWER - 4 or 2
The height of a cumulus cloud base if the surface temperature were 25 and dew point 10 -
CORRECT ANSWER - 6000
The type of satellite imagery that best shows shadows - CORRECT ANSWER - visible
The time of day for peak thunderstorm activity over ND - CORRECT ANSWER - Late
Night
The height of the 700 mb surface - CORRECT ANSWER - 10000ft
One of two locations where high altitude CAT is most common - CORRECT ANSWER -
Tropopause or Upper Front
The type of ice most common in cumulus - CORRECT ANSWER - Glaze/Clear
