WX301 Exam 3 UPDATED Exam Questions
and CORRECT Answers
Infra-red satellites sense - CORRECT ANSWER - cloud top temperature
In a black and white IR image, land appears dark compared with the sea. Does this mean that -
CORRECT ANSWER - land is warmer than the sea
To pinpoint the location of a target, we need information about the - CORRECT ANSWER -
target range, elevation and azimuth
An image of radar reflectivity displayed on a horizontal map is called - CORRECT
ANSWER - a plan position indicator
Composite reflectivity is - CORRECT ANSWER - the highest reflectivity over different
elevation scans
In a range-height indicator display, convective precipitation shows up as - CORRECT
ANSWER - a tower like area of high reflectivity
The Z-R relationship relates __ to__ - CORRECT ANSWER - reflectivity to rainfall rate
A Dopper radar measures precipitation rate and - CORRECT ANSWER - radial component of
wind to/from the radar
What causes attenuation - CORRECT ANSWER - strong precipitation between the radar and
a more distant area of precipitation that reduces the signal from the distant area
Airborne radar has __ attenuation and a __ beam width than NWS WSR-88D radar - CORRECT
ANSWER - more; bigger
, Dual-polarization radar can provide more information about ___ and ___ - CORRECT
ANSWER - precip type and size, non precipitation scatters
Globally, TS are most common - CORRECT ANSWER - over tropical land masses
To get a thunderstorm, we need each of the following three conditions. - CORRECT
ANSWER - unstable air, a lifting mechanism, low level moisture
Over tropical oceans, most TS occur - CORRECT ANSWER - just before dawn
An airmass thunderstorm has mostly updrafts and surface flow toward the storm at the __ stage -
CORRECT ANSWER - cumulus
Thunderstorms are most common over Iowa - CORRECT ANSWER - around sunset
In the US, most thunderstorms occur in __ over __ - CORRECT ANSWER - summer; Florida
An air mass thunderstorm typically lasts - CORRECT ANSWER - 30-60 min
Cumulonimbus literally means - CORRECT ANSWER - heaped rain-producing clouds
TS over the desert southwest are most common during. - CORRECT ANSWER - mid
afternoon
The outer edge of the expanding cold air below a thunderstorms is called - CORRECT
ANSWER - the outflow boundary
At the outer edge of the expanding cold air we find the - CORRECT ANSWER - gust front
and CORRECT Answers
Infra-red satellites sense - CORRECT ANSWER - cloud top temperature
In a black and white IR image, land appears dark compared with the sea. Does this mean that -
CORRECT ANSWER - land is warmer than the sea
To pinpoint the location of a target, we need information about the - CORRECT ANSWER -
target range, elevation and azimuth
An image of radar reflectivity displayed on a horizontal map is called - CORRECT
ANSWER - a plan position indicator
Composite reflectivity is - CORRECT ANSWER - the highest reflectivity over different
elevation scans
In a range-height indicator display, convective precipitation shows up as - CORRECT
ANSWER - a tower like area of high reflectivity
The Z-R relationship relates __ to__ - CORRECT ANSWER - reflectivity to rainfall rate
A Dopper radar measures precipitation rate and - CORRECT ANSWER - radial component of
wind to/from the radar
What causes attenuation - CORRECT ANSWER - strong precipitation between the radar and
a more distant area of precipitation that reduces the signal from the distant area
Airborne radar has __ attenuation and a __ beam width than NWS WSR-88D radar - CORRECT
ANSWER - more; bigger
, Dual-polarization radar can provide more information about ___ and ___ - CORRECT
ANSWER - precip type and size, non precipitation scatters
Globally, TS are most common - CORRECT ANSWER - over tropical land masses
To get a thunderstorm, we need each of the following three conditions. - CORRECT
ANSWER - unstable air, a lifting mechanism, low level moisture
Over tropical oceans, most TS occur - CORRECT ANSWER - just before dawn
An airmass thunderstorm has mostly updrafts and surface flow toward the storm at the __ stage -
CORRECT ANSWER - cumulus
Thunderstorms are most common over Iowa - CORRECT ANSWER - around sunset
In the US, most thunderstorms occur in __ over __ - CORRECT ANSWER - summer; Florida
An air mass thunderstorm typically lasts - CORRECT ANSWER - 30-60 min
Cumulonimbus literally means - CORRECT ANSWER - heaped rain-producing clouds
TS over the desert southwest are most common during. - CORRECT ANSWER - mid
afternoon
The outer edge of the expanding cold air below a thunderstorms is called - CORRECT
ANSWER - the outflow boundary
At the outer edge of the expanding cold air we find the - CORRECT ANSWER - gust front
