FAA Aircraft Dispatcher Exam Questions with all Correct &
100% Verified Answers |Actual Complete Exam |Already
Graded A+
How often are METARs issues? ✔Correct Answer-Every hour, or whenever the weather
changes and necessitates a change. In that situation, a SPECI (special METAR) is issued.
What is a SPECI? ✔Correct Answer-A special METAR which is created in between the hourly
METARs due to a change in weather necessitating the change.
-Change of winds necessitating a new runway.
-WX changing from IFR to VFR or VFR to IFR.
Do METARs describe actual or forecast conditions? ✔Correct Answer-METARs depict actual
field conditions.
Define Radiation fog ✔Correct Answer-Shallow fog, ground fog. occurs on clear nights, little or
no wind, and small temp/DP spread (high relative humidity). Occurs at night or daybreak.
Radiation cools the ground. The ground cools the air. When the air is cooled to the dew-point,
fog forms.
Define Advection fog ✔Correct Answer-This fog forms when moist air moves over colder
ground or water. Common along the coast.
What is lake effect? Describe one major consequence of lake effect in winter. ✔Correct
Answer-Air moving across a sizeable lake absorbs water vapor.
Showers may appear on the leeward side if the air is colder than the water. If the air is warmer
than the water, fog often develops on the leeward side. In the winter, lake effect snow is a
concern because as a cold front passes over the warmer lake water, snow, instead of showers
will occur.
What happens when the Temperature/dewpoint are very close? ✔Correct Answer-Small
Temp/DP spread is essential to the formation of fog.
How often are TAFs issued? ✔Correct Answer-Valid for a 24-hour period, TAFs are issued four
times daily at 00Z, 06Z, 12Z, and 18Z, and updated as conditions warrant. TAFs include
information about wind speed and direction, visibility, present weather, ceilings, and low-level
wind shear.
Why is it important to know when the various charts and reports are issued? ✔Correct
Answer-Because you always need to use the most up to date information and knowing when
the next forecast is coming up is essential for making critcal flight decisions. For instance, if it is
,05:55Z, the TAF from 00Z is the most up-to-date forecast, however, in only 5 minutes, the 06Z
TAF will be the most up-to-date forecast and could contain critical information.
What is an Amended TAF? ✔Correct Answer-An amended TAF is issued when the current TAF
no longer adequately describes the ongoing weather or the forecaster feels the TAF is not
representative of the current or expected weather.
Which sky conditions are considered a ceiling? ✔Correct Answer-Broken, Overcast, VV
(vertical visibility[indefinite ceiling])
How often is a surface analysis chart issued? ✔Correct Answer-starting at 00Z at 3 hour
intervals. (8 times a day)
What are the primary features of a surface analysis chart? ✔Correct Answer-They show
pressure patterns, fronts, and information on individual reporting stations. The pressure
patterns are shown by isobars.
Isobars
Pressure Systems
Fronts
Troughs and Ridges
Station Models
How is a surface analysis chart used? ✔Correct Answer-It is used to determine sky cover, the
types of clouds. SLP, pressure change, precip, temp/dew point, present wx, wind. They can be
used to locate the jetstream, turbulence, and wind shear.
What is the relationship between isobars and surface winds? ✔Correct Answer-The closer the
isobars are together, the stronger the winds will be.
How often is a Weather depiction chart issued? ✔Correct Answer-Every 3 hours starting at
01Z
What is a weather depiction chart? ✔Correct Answer-A weather chart to be used for flight
planning by giving an overall picture of the WX across the US.
, What is a Radar summary chart? ✔Correct Answer-A radar summary chart is a graphically
depicted collection of radar weather reports.
Does the Radar summary chart depict forecast conditions, or observed conditions? How often?
✔Correct Answer-Observed, hourly.
What is the difference between visible and infrared Satellite imagery? ✔Correct Answer-The
visible images display cloud cover. The infrared images display the earth in a manner that
correlates with temperature. Generally speaking, the warmer an object, the more infrared
energy it emits.
What does water vapor imagery show on the Satellite imagery? ✔Correct Answer-The water
vapor images display the earth in a manner that correlates to quantity of water vapor in the
upper portions of the atmosphere (25,000 feet and higher in general). The most useful
information to be gained from the water vapor images is the locations of storm systems and the
jet stream.
What do the Valid Times indicate?
(on a prog chart) ✔Correct Answer-12 and 24 hours. They indicate that the prog chart is valid
for 12 hours from the time issued, or 24 hours from the time issued.
How many times are Prog charts issued? ✔Correct Answer-4 times a day. 00Z, 06Z, 12Z, 18Z.
Is a prog chart a forecast or a depiction of actual conditions? ✔Correct Answer-Forecast.
Remember "to prognosticate" means "to forecast"
What kinds of weather/hazards are shown on the low level prog chart? ✔Correct Answer-
Precip, icing, turbulence, thunderstorms, tropical storms, hurricanes IFR/MVFR conditions,
areas of high/low pressure, different types of fronts.
What is a cold front? ✔Correct Answer-The leading edge of an advancing cold air mass
What clouds are associated with a cold front? ✔Correct Answer-Cumulus and cumulonimbus
What weather is associated with a cold front? ✔Correct Answer-Thunderstorms, hail,
tornadoes, good visibility.
What discontinuities are associated with a cold front? ✔Correct Answer--Temp: Cold air
advances and overtakes warm air.
-Pressure: Pressure will drop then rises abruptly after the front passes.
- Windshift
What is a warm front? ✔Correct Answer-The leading edge of an advancing warm air mass.
100% Verified Answers |Actual Complete Exam |Already
Graded A+
How often are METARs issues? ✔Correct Answer-Every hour, or whenever the weather
changes and necessitates a change. In that situation, a SPECI (special METAR) is issued.
What is a SPECI? ✔Correct Answer-A special METAR which is created in between the hourly
METARs due to a change in weather necessitating the change.
-Change of winds necessitating a new runway.
-WX changing from IFR to VFR or VFR to IFR.
Do METARs describe actual or forecast conditions? ✔Correct Answer-METARs depict actual
field conditions.
Define Radiation fog ✔Correct Answer-Shallow fog, ground fog. occurs on clear nights, little or
no wind, and small temp/DP spread (high relative humidity). Occurs at night or daybreak.
Radiation cools the ground. The ground cools the air. When the air is cooled to the dew-point,
fog forms.
Define Advection fog ✔Correct Answer-This fog forms when moist air moves over colder
ground or water. Common along the coast.
What is lake effect? Describe one major consequence of lake effect in winter. ✔Correct
Answer-Air moving across a sizeable lake absorbs water vapor.
Showers may appear on the leeward side if the air is colder than the water. If the air is warmer
than the water, fog often develops on the leeward side. In the winter, lake effect snow is a
concern because as a cold front passes over the warmer lake water, snow, instead of showers
will occur.
What happens when the Temperature/dewpoint are very close? ✔Correct Answer-Small
Temp/DP spread is essential to the formation of fog.
How often are TAFs issued? ✔Correct Answer-Valid for a 24-hour period, TAFs are issued four
times daily at 00Z, 06Z, 12Z, and 18Z, and updated as conditions warrant. TAFs include
information about wind speed and direction, visibility, present weather, ceilings, and low-level
wind shear.
Why is it important to know when the various charts and reports are issued? ✔Correct
Answer-Because you always need to use the most up to date information and knowing when
the next forecast is coming up is essential for making critcal flight decisions. For instance, if it is
,05:55Z, the TAF from 00Z is the most up-to-date forecast, however, in only 5 minutes, the 06Z
TAF will be the most up-to-date forecast and could contain critical information.
What is an Amended TAF? ✔Correct Answer-An amended TAF is issued when the current TAF
no longer adequately describes the ongoing weather or the forecaster feels the TAF is not
representative of the current or expected weather.
Which sky conditions are considered a ceiling? ✔Correct Answer-Broken, Overcast, VV
(vertical visibility[indefinite ceiling])
How often is a surface analysis chart issued? ✔Correct Answer-starting at 00Z at 3 hour
intervals. (8 times a day)
What are the primary features of a surface analysis chart? ✔Correct Answer-They show
pressure patterns, fronts, and information on individual reporting stations. The pressure
patterns are shown by isobars.
Isobars
Pressure Systems
Fronts
Troughs and Ridges
Station Models
How is a surface analysis chart used? ✔Correct Answer-It is used to determine sky cover, the
types of clouds. SLP, pressure change, precip, temp/dew point, present wx, wind. They can be
used to locate the jetstream, turbulence, and wind shear.
What is the relationship between isobars and surface winds? ✔Correct Answer-The closer the
isobars are together, the stronger the winds will be.
How often is a Weather depiction chart issued? ✔Correct Answer-Every 3 hours starting at
01Z
What is a weather depiction chart? ✔Correct Answer-A weather chart to be used for flight
planning by giving an overall picture of the WX across the US.
, What is a Radar summary chart? ✔Correct Answer-A radar summary chart is a graphically
depicted collection of radar weather reports.
Does the Radar summary chart depict forecast conditions, or observed conditions? How often?
✔Correct Answer-Observed, hourly.
What is the difference between visible and infrared Satellite imagery? ✔Correct Answer-The
visible images display cloud cover. The infrared images display the earth in a manner that
correlates with temperature. Generally speaking, the warmer an object, the more infrared
energy it emits.
What does water vapor imagery show on the Satellite imagery? ✔Correct Answer-The water
vapor images display the earth in a manner that correlates to quantity of water vapor in the
upper portions of the atmosphere (25,000 feet and higher in general). The most useful
information to be gained from the water vapor images is the locations of storm systems and the
jet stream.
What do the Valid Times indicate?
(on a prog chart) ✔Correct Answer-12 and 24 hours. They indicate that the prog chart is valid
for 12 hours from the time issued, or 24 hours from the time issued.
How many times are Prog charts issued? ✔Correct Answer-4 times a day. 00Z, 06Z, 12Z, 18Z.
Is a prog chart a forecast or a depiction of actual conditions? ✔Correct Answer-Forecast.
Remember "to prognosticate" means "to forecast"
What kinds of weather/hazards are shown on the low level prog chart? ✔Correct Answer-
Precip, icing, turbulence, thunderstorms, tropical storms, hurricanes IFR/MVFR conditions,
areas of high/low pressure, different types of fronts.
What is a cold front? ✔Correct Answer-The leading edge of an advancing cold air mass
What clouds are associated with a cold front? ✔Correct Answer-Cumulus and cumulonimbus
What weather is associated with a cold front? ✔Correct Answer-Thunderstorms, hail,
tornadoes, good visibility.
What discontinuities are associated with a cold front? ✔Correct Answer--Temp: Cold air
advances and overtakes warm air.
-Pressure: Pressure will drop then rises abruptly after the front passes.
- Windshift
What is a warm front? ✔Correct Answer-The leading edge of an advancing warm air mass.
