ATPL SAMRA EXAM QUESTIONS AND
ANSWERS
Define ISOBAR: - Correct Answers -Lines connecting the areas of equal pressure
ISOBAR Standard separation: - Correct Answers -4 millibars apart
ISOBAR Air flow: - Correct Answers -From High pressure areas to Low pressure areas
High Pressure Areas: - Correct Answers -Descending air
Air rotates Clockwise (North )
Outward from the center
Fair weather
Can remain stationary for days
Low Pressure Areas: - Correct Answers -Rising air
Air rotates Counterclockwise ( North )
Inward toward the center
Thunderstorms and unstable weather
Tend to be very quick moving
Troughs: - Correct Answers -It is a long area of Low Pressure
Ridges: - Correct Answers -It is a long area of High Pressure
Col: - Correct Answers -It is a neutral area between two Highs and two Low areas
Altimeter setting is based on: - Correct Answers -Sea level
Flying from Different Pressure Areas: - Correct Answers -From High to Low - The
aircraft will gradually descent.
From Low to High - The aircraft will gradually climb.
A continental arctic (CA) air mass moves over the great lakes in early autumn produces:
- Correct Answers -Steam fog
A GFA (Graphical Area Forecast)is valid for: - Correct Answers -12 hours with an
additional outlook period of 12 hours.
,GFA (Graphical Area Forecast) Charts: - Correct Answers --Are issued 4 times daily
-Approximately 30 min before the beginning of
the forecast period
-They are valid at: 0000, 0600, 1200, 1800
A GPS system requires how many satellites to provide a 3 dimensional position? -
Correct Answers -4 satellites
There are 6 types of FOG: - Correct Answers --Radiation
-Advection
-Upslope
-Frontal
-Steam
-Ice
Basic ingredients to form a FOG: - Correct Answers --High Humidity
-Condensation Nuclei
-Very light surface wind
-Cooling process
Radiation Fog - Correct Answers --Formed by radiation cooling on clear nights where
the relative humidity is high and light winds are present.
-Most likely to present shortly after sunrise
Advection Fog - Correct Answers --Formed by the horizontal movement of warm moist
air over a colder surface
-Typically dense and can last for several days
-Winds above 15kt may lift the fog
Upslope Fog - Correct Answers --Moist air moves up rising terrain
Frontal Fog - Correct Answers --Also known as precipitation fog
-Precipitation from a warm front falls into cold air below. As the rain evaporates,
saturation occurs causing fog
Steam Fog - Correct Answers --Also Known as Artic Sea Smoke
-Forms by water vapour being added to the air
-Ideal conditions are when extreme cold air blows over the ocean
-When the water vapour condenses, a fog or mist will form
Difference between Mist and Fog - Correct Answers -Visibility exceeds 5/8 of a mile =
Mist (BR)
Visibility below 5/8 of a mile = Fog (FG)
SIGMET (Significant Meteorological Information) - Correct Answers --Severe
thunderstorm
, -Squall line
-Hail
-Volcanic Ash
-Hurricane
-Tornadoes
-Severe icing
-Mountain waves
-Send or dust storms
-Low-level wind shear
TAF ( Terminal Aerodrome Forecast) - Correct Answers --A TAF gives the weather that
is expected within 5 NM of the runway complex.
-Clouds high are in AGL
- Winds are in degrees TRUE
-Issued 4 times a day for either, 12, 24 and 30 hours period
A winter warm front will give what kind of weather? - Correct Answers -Freezing rain
and ice pellets
ADF airways: - Correct Answers -NDB systems are flight checked to an accuracy of at
least ±5° for an approach and ±10° for enroute
ADF night effect: - Correct Answers -Is maximum at dusk and at dawn
Air mass weather is determined by: - Correct Answers -Moisture content, cooling and
heating processes and stability of the air
Category Ceiling Visibility: - Correct Answers -IFR - Less than 1000ft ceiling or/and less
than 3 SM visibility
MVFR - Between 1000 and 3000ft ceiling or/and between 3 and 5 SM visibility
VFR - More than 3000ft ceiling or/and more than 5 SM visibility
CAVOK means: - Correct Answers -No cloud below 5,000 feet or below the highest
sector minimum altitude, no CB activity and visibility of 6 sm or more.
Clear air turbulence is most likely to occur: - Correct Answers -In an upper trough on the
polar side of a jet stream.
Coastal refraction error (shoreline effect) is greatest: - Correct Answers -When the ADF
bearing is less than 30 degrees.
Density altitude is: - Correct Answers -PRESSURE altitude corrected for
TEMPERATURE
DME slant range error is greatest: - Correct Answers -At a short distance from the
station and at high altitude
ANSWERS
Define ISOBAR: - Correct Answers -Lines connecting the areas of equal pressure
ISOBAR Standard separation: - Correct Answers -4 millibars apart
ISOBAR Air flow: - Correct Answers -From High pressure areas to Low pressure areas
High Pressure Areas: - Correct Answers -Descending air
Air rotates Clockwise (North )
Outward from the center
Fair weather
Can remain stationary for days
Low Pressure Areas: - Correct Answers -Rising air
Air rotates Counterclockwise ( North )
Inward toward the center
Thunderstorms and unstable weather
Tend to be very quick moving
Troughs: - Correct Answers -It is a long area of Low Pressure
Ridges: - Correct Answers -It is a long area of High Pressure
Col: - Correct Answers -It is a neutral area between two Highs and two Low areas
Altimeter setting is based on: - Correct Answers -Sea level
Flying from Different Pressure Areas: - Correct Answers -From High to Low - The
aircraft will gradually descent.
From Low to High - The aircraft will gradually climb.
A continental arctic (CA) air mass moves over the great lakes in early autumn produces:
- Correct Answers -Steam fog
A GFA (Graphical Area Forecast)is valid for: - Correct Answers -12 hours with an
additional outlook period of 12 hours.
,GFA (Graphical Area Forecast) Charts: - Correct Answers --Are issued 4 times daily
-Approximately 30 min before the beginning of
the forecast period
-They are valid at: 0000, 0600, 1200, 1800
A GPS system requires how many satellites to provide a 3 dimensional position? -
Correct Answers -4 satellites
There are 6 types of FOG: - Correct Answers --Radiation
-Advection
-Upslope
-Frontal
-Steam
-Ice
Basic ingredients to form a FOG: - Correct Answers --High Humidity
-Condensation Nuclei
-Very light surface wind
-Cooling process
Radiation Fog - Correct Answers --Formed by radiation cooling on clear nights where
the relative humidity is high and light winds are present.
-Most likely to present shortly after sunrise
Advection Fog - Correct Answers --Formed by the horizontal movement of warm moist
air over a colder surface
-Typically dense and can last for several days
-Winds above 15kt may lift the fog
Upslope Fog - Correct Answers --Moist air moves up rising terrain
Frontal Fog - Correct Answers --Also known as precipitation fog
-Precipitation from a warm front falls into cold air below. As the rain evaporates,
saturation occurs causing fog
Steam Fog - Correct Answers --Also Known as Artic Sea Smoke
-Forms by water vapour being added to the air
-Ideal conditions are when extreme cold air blows over the ocean
-When the water vapour condenses, a fog or mist will form
Difference between Mist and Fog - Correct Answers -Visibility exceeds 5/8 of a mile =
Mist (BR)
Visibility below 5/8 of a mile = Fog (FG)
SIGMET (Significant Meteorological Information) - Correct Answers --Severe
thunderstorm
, -Squall line
-Hail
-Volcanic Ash
-Hurricane
-Tornadoes
-Severe icing
-Mountain waves
-Send or dust storms
-Low-level wind shear
TAF ( Terminal Aerodrome Forecast) - Correct Answers --A TAF gives the weather that
is expected within 5 NM of the runway complex.
-Clouds high are in AGL
- Winds are in degrees TRUE
-Issued 4 times a day for either, 12, 24 and 30 hours period
A winter warm front will give what kind of weather? - Correct Answers -Freezing rain
and ice pellets
ADF airways: - Correct Answers -NDB systems are flight checked to an accuracy of at
least ±5° for an approach and ±10° for enroute
ADF night effect: - Correct Answers -Is maximum at dusk and at dawn
Air mass weather is determined by: - Correct Answers -Moisture content, cooling and
heating processes and stability of the air
Category Ceiling Visibility: - Correct Answers -IFR - Less than 1000ft ceiling or/and less
than 3 SM visibility
MVFR - Between 1000 and 3000ft ceiling or/and between 3 and 5 SM visibility
VFR - More than 3000ft ceiling or/and more than 5 SM visibility
CAVOK means: - Correct Answers -No cloud below 5,000 feet or below the highest
sector minimum altitude, no CB activity and visibility of 6 sm or more.
Clear air turbulence is most likely to occur: - Correct Answers -In an upper trough on the
polar side of a jet stream.
Coastal refraction error (shoreline effect) is greatest: - Correct Answers -When the ADF
bearing is less than 30 degrees.
Density altitude is: - Correct Answers -PRESSURE altitude corrected for
TEMPERATURE
DME slant range error is greatest: - Correct Answers -At a short distance from the
station and at high altitude
