FD MET EXAM QUESTIONS AND ANSWERS
Standard ICAO Laspe Rate is:
a) 1.5 C per 1000 ft
b) 1.98 C per 1000 ft
c) 2 C per 1000 ft
d) 3 C per 1000 ft - Answers :1.98 C per 1000 ft
What is the average altitude of the tropopause?
a)28,000 ft
b) 30,000 ft
c) 36,000 ft
d) 41,000 ft - Answers :36,000 ft
In a parcel of air, if temperature increases but vapour content remains the same, what
changes?
a) dewpoint
b) nothing
c) relative humidity
d) adiabatic lapse rate - Answers :relative humidity
What does short-wave radiation heat?
a) atmosphere
b) surface of the earth
c) clouds
d) water - Answers :surface of the earth
The temperature is constant through the vertical extent of a layer of air. The lapse rate
is:
a) negative
b) steep
c) shallow
d) isothermal - Answers :isothermal
A flight takes off with strong inversion? What hazard can be expected?
a) intense wind shear
b) intense rain
c) temperature decreasing with height
d) thunderstorms - Answers :intense wind shear
What topography is least likely to form diurnal variations:
,a) desert
b) forest
c) temperature water
d) prairies - Answers :temperature water
A negative lapse rate will result in ______air and ____ clouds in the lower levels.
a) stable, layered stratus
b) stable, heap cumulus
c) unstable, layered status
d) unstable, heap cumulus - Answers :stable, layered stratus
What are the general conditions and properties of unstable air?
a) showery precipitation, heap cloud, cold air over warm air
b) showery precipitation, heap cloud, warm air over cold air
c) continuous precipitation, layer cloud, cold air over warm air
d) continuous precipitation, heap cloud, warm air over cold air - Answers :a) showery
precipitation, heap cloud, cold air over warm air
The air is moist and unstable. A pilot can expect
a) stratus clouds and shower
b) heap clouds and showers
c) stratus clouds and continuous rain
d) heap clouds and continuous rain - Answers :heap clouds and showers
The standard Dry Adiabatic Lapse Rate is
a) 10 C per 1000ft
b) 5 C per 1000ft
c) 3 C per 1000ft
d) 2 C per 1000ft - Answers :3 C per 1000ft
How can you determine the stability of saturated air?
a) compare environmental lapse rate and saturated adiabatic lapse rate
b) compare dry adiabatic lapse rate and saturated adiabatic lapse rate
c) compare environmental lapse rate and dry adiabatic lapse rate
d) compare saturated lapse rate and dry adiabatic lapse rate - Answers :compare
environmental lapse rate and saturated adiabatic lapse rate
What weather conditions can be expected if the atmosphere is moist and unstable?
1. Heap clouds
,2. Fog
3. Showers
4. Layered cloud
5. Continuous precipitation
a) 1,3,5
b) 1,2,3,4,5
c) 1,3,
d) 2,4,5 - Answers :1,3,
Why is the tropopause lower in the Artic?
a) cold temperatures cause air to compress and sink
b) gravity is stronger in the arctic
c) the sun's rays don't penetrate at a high angle
d) there is rarely any weather that occurs in the Arctic - Answers :cold temperatures
cause air to compress and sink
The average height of tropopause is _______at the equator than at the poles. The
temperature of the tropopause is_______ at the poles than at the equator.
a) higher, warmer
b) higher, colder
c) lower, warmer
d) lower, colder - Answers :higher, warmer
What are the properties of the ICAO standard atmosphere?
a) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
1.98C/1000ft, Dry Air
b) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
1.98C/1000ft
c) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
2C/1000ft
d) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
3C/1000ft - Answers :a) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature,
Atmospheric lapse rate of 1.98C/1000ft, Dry Air
What is dewpoint?
a) the temperature to which water vapour must be added to form condensation
b) the temperature at which relative humidity is 90%
c) the temperature to which air must be cooled, at a constant pressure, to be completely
saturated
d) the temperature at which fog forms - Answers :the temperature to which air must be
cooled, at a constant pressure, to be completely saturated
, What is the process called where ice crystals turn directly to water vapour:
a) sublimation
b) evaporation
c) freezing
d) condensation - Answers :sublimation
The process where water vapour converts directly into ice is called
a) evaporation
b) cooling
c) condensation
d) deposition - Answers :deposition
What determines the quantity of moisture an air mass can hold?
a) temperature
b) wind
c) terrain
d) location of the air mass - Answers :temperature
A warm air mass goes over a very cold surface. What is the result?
a) strong vertical currents
b) smooth flight in the lower levels
c) cumulus / heap clouds
d) thunderstorms - Answers :smooth flight in the lower levels
What is an isobar?
a) line joining points of equal surface pressure
b) line joining points of equal mean sea level pressure
c) line joining points of equal temperature
d) line joining points of equal heights of pressure - Answers :line joining points of equal
mean sea level pressure
What are contours?
a) lines joining points of equal MSL pressure
b) lines joining points of equal of the same pressure level
c) lines joining points of equal heights of terrain
d) lines joining points of equal angles of pressure levels - Answers :lines joining points
of equal of the same pressure level
What is another name for a low pressure system?
Standard ICAO Laspe Rate is:
a) 1.5 C per 1000 ft
b) 1.98 C per 1000 ft
c) 2 C per 1000 ft
d) 3 C per 1000 ft - Answers :1.98 C per 1000 ft
What is the average altitude of the tropopause?
a)28,000 ft
b) 30,000 ft
c) 36,000 ft
d) 41,000 ft - Answers :36,000 ft
In a parcel of air, if temperature increases but vapour content remains the same, what
changes?
a) dewpoint
b) nothing
c) relative humidity
d) adiabatic lapse rate - Answers :relative humidity
What does short-wave radiation heat?
a) atmosphere
b) surface of the earth
c) clouds
d) water - Answers :surface of the earth
The temperature is constant through the vertical extent of a layer of air. The lapse rate
is:
a) negative
b) steep
c) shallow
d) isothermal - Answers :isothermal
A flight takes off with strong inversion? What hazard can be expected?
a) intense wind shear
b) intense rain
c) temperature decreasing with height
d) thunderstorms - Answers :intense wind shear
What topography is least likely to form diurnal variations:
,a) desert
b) forest
c) temperature water
d) prairies - Answers :temperature water
A negative lapse rate will result in ______air and ____ clouds in the lower levels.
a) stable, layered stratus
b) stable, heap cumulus
c) unstable, layered status
d) unstable, heap cumulus - Answers :stable, layered stratus
What are the general conditions and properties of unstable air?
a) showery precipitation, heap cloud, cold air over warm air
b) showery precipitation, heap cloud, warm air over cold air
c) continuous precipitation, layer cloud, cold air over warm air
d) continuous precipitation, heap cloud, warm air over cold air - Answers :a) showery
precipitation, heap cloud, cold air over warm air
The air is moist and unstable. A pilot can expect
a) stratus clouds and shower
b) heap clouds and showers
c) stratus clouds and continuous rain
d) heap clouds and continuous rain - Answers :heap clouds and showers
The standard Dry Adiabatic Lapse Rate is
a) 10 C per 1000ft
b) 5 C per 1000ft
c) 3 C per 1000ft
d) 2 C per 1000ft - Answers :3 C per 1000ft
How can you determine the stability of saturated air?
a) compare environmental lapse rate and saturated adiabatic lapse rate
b) compare dry adiabatic lapse rate and saturated adiabatic lapse rate
c) compare environmental lapse rate and dry adiabatic lapse rate
d) compare saturated lapse rate and dry adiabatic lapse rate - Answers :compare
environmental lapse rate and saturated adiabatic lapse rate
What weather conditions can be expected if the atmosphere is moist and unstable?
1. Heap clouds
,2. Fog
3. Showers
4. Layered cloud
5. Continuous precipitation
a) 1,3,5
b) 1,2,3,4,5
c) 1,3,
d) 2,4,5 - Answers :1,3,
Why is the tropopause lower in the Artic?
a) cold temperatures cause air to compress and sink
b) gravity is stronger in the arctic
c) the sun's rays don't penetrate at a high angle
d) there is rarely any weather that occurs in the Arctic - Answers :cold temperatures
cause air to compress and sink
The average height of tropopause is _______at the equator than at the poles. The
temperature of the tropopause is_______ at the poles than at the equator.
a) higher, warmer
b) higher, colder
c) lower, warmer
d) lower, colder - Answers :higher, warmer
What are the properties of the ICAO standard atmosphere?
a) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
1.98C/1000ft, Dry Air
b) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
1.98C/1000ft
c) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
2C/1000ft
d) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature, Atmospheric lapse rate of
3C/1000ft - Answers :a) 29.92" Hg, 1013.2 HPa, 15C Sea Level Temperature,
Atmospheric lapse rate of 1.98C/1000ft, Dry Air
What is dewpoint?
a) the temperature to which water vapour must be added to form condensation
b) the temperature at which relative humidity is 90%
c) the temperature to which air must be cooled, at a constant pressure, to be completely
saturated
d) the temperature at which fog forms - Answers :the temperature to which air must be
cooled, at a constant pressure, to be completely saturated
, What is the process called where ice crystals turn directly to water vapour:
a) sublimation
b) evaporation
c) freezing
d) condensation - Answers :sublimation
The process where water vapour converts directly into ice is called
a) evaporation
b) cooling
c) condensation
d) deposition - Answers :deposition
What determines the quantity of moisture an air mass can hold?
a) temperature
b) wind
c) terrain
d) location of the air mass - Answers :temperature
A warm air mass goes over a very cold surface. What is the result?
a) strong vertical currents
b) smooth flight in the lower levels
c) cumulus / heap clouds
d) thunderstorms - Answers :smooth flight in the lower levels
What is an isobar?
a) line joining points of equal surface pressure
b) line joining points of equal mean sea level pressure
c) line joining points of equal temperature
d) line joining points of equal heights of pressure - Answers :line joining points of equal
mean sea level pressure
What are contours?
a) lines joining points of equal MSL pressure
b) lines joining points of equal of the same pressure level
c) lines joining points of equal heights of terrain
d) lines joining points of equal angles of pressure levels - Answers :lines joining points
of equal of the same pressure level
What is another name for a low pressure system?
