WorksheetsMeteorology
Total questions: 58
Worksheet time: 29mins
What is true about International Standard Atmosphere (ISA)?
It contains 28% Oxygen
It contains 71% Nitrogen
It contains 0% Water
International Standard Atmosphere (ISA): The temperature lapse rate is....
0,65 centigrades per 1 000 ft of altitude
3 centigrades per 1 000 ft of altitude
2 centigrades per 1 000 ft of altitude
At what altitude would you have approximately 50% of the air pressure when compared to sea level pressure?
18 000 ft
18 000 m
3 km
Atmospheric circulation is due to:
Coriolis force
Airpressure differences
Uneven heating
Airflow (wind) is deflected to the ___________ on northern hemisphere.
left
right
poles
Airflow (wind) is deflected to the ___________ on southern hemisphere.
left
right
poles
Air or air mass coming from the area around north pole is called:
polar
arctic
antarctic
When the altitude increases, air pressure ________________
decreases
increases
remains the same
When the altitude increases, air density ________________
increases
decreases
remains the same
When the altitude increases, density altitude ________________
increases
decreases
remains the same
Area with high pressure is called:
anti-cyclone
cyclone
front
Area with low pressure is called:
anti-cyclone
cyclone
front
Air flows from_____ to _____
High, Low
Low, Cold
Cold, Warm
When close to the sea, we may encounter ______ breeze during the day
sea
land
ascending
When close to the sea, we may encounter ______ breeze during the night
sea
land
descending
Valley wind updraughts due to solar heating are most pronounced during
winter
spring
summer
Updraughts due to solar radiation in valleys may cause (dangerous phenomenon):
Vortex ring state
increased fuel consumption
decreased payloads
When looking at the surface weather chart (synoptic map) and seeing isobars closely spaced:
the wind speed is higher
the windspeed is lower
the wind blows across isobars
When looking at the surface weather chart (synoptic map) and seeing isobars closely spaced:
the windspeed is low
the wind blows across isobars
the wind blows parallel to isobars
Which air (mass) will be more likely unstable?
Moist air
Dry air
Descending air
Which air (mass) will be more likely stable?
Moist air
Dry air
Ascending air
Which air will cool down faster (when ascending)?
Moist air
Dry air
Unstable air
Which type of inversion may develop fog?
Surface inversion
Frontal inversion
Any inversion
When there is fog due to inversion, which type of inversion is more likely to allow quick dissipation of the fog?
Surface inversion
Frontal inversion
There is no difference between surface and frontal inversion in this regard
What will happen when the air is cooled down exactly to its dew point temperature?
Rain
Hail
Fog
What will happen when the air with relative humidity of 99% is heated up by 1 centigrade?
Relative humidity increases
Relative humidity decreases
Fog starts forming
In order to dew and frost being developed, the air must be cooled to:
dew point temperature
below dew point temperature
just above the dew point temperature
The air mass influencing the middle east the most is:
wet and warm
dry and warm
wet and cold
Continental air masses are typically:
cold
dry
warm
Maritime air masses are typically:
Wet
Dry
Warm
Typical low altitude cloud is:
Cirrus
Altocummulus
Nimbostratus
Typical mid-altitude cloud is:
Cirrostratus
Altocummulus
Stratocummulus
Which one of these clouds may spread across all altitudes?
Nimbostratus
Cummulonimbus
Altonimbus
Which front usually advances faster?
Cold front
Warm front
Occluded front
Which front may develop squall lines?
Cold front
Warm front
Occuded front
Select what fits cold front description better:
More violent weather, but usually does not last too long
More violent weather and lasts long
Moderate rain that may last days
Clouds associated with a warm front start forming:
In front of the front
At the front
Behind the front
Clouds associated with the cold front start forming:
In front of the front
At the front or slightly behind it
At the front only
How far from the warm front clouds start forming
Not more than 300 km in front of it
Up to 1 000 km behind it
Up to 1 000 km in front of it
Wind shear may be expected:
Under cumulonimbus clouds
Under altocumulus clouds
Under cirrus clouds
Wind shear may be expected when:
Flying over terrain with largely different solar heating differences
Flying over terrain with similar solar heating properties
Flying over a flat featureless terrain
When flying in a windshear and the wind direction changes from headwind to tailwind, what aircraft behavior can be expected (with respect to flight path)?
Descent, unless pilot reacts
Climb, unless pilot reacts
No changes
When flying in a windshear and the wind direction changes from tailwind to headwind, what aircraft behavior can be expected (with respect to flight path)?
Descent, unless pilot reacts
Climb, unless pilot reacts
No changes
A typical cummulonimbus cloud has ________ stages.
These are ____________
2; cummulating stage and dissipating stage
2; cummulus stage and mature stage
3; cummulus, mature and dissipating stage
Which one of the cummulonimbus stages is associated with the most violent weather?
Cummulus stage
Mature stage
Dissipating stage
Which one of the two types of thunderstorms will probably last longer?
Air mass thunderstorm
Steady state thunderstorm
Mountain thunderstorm
Which thunderstorm is associated with frontal systems?
Air mass thunderstorm
Steady state thunderstorm
Valley thunderstorm
What are probably the most dangerous hazards associated with thunderstorms?
Windshear and rain
Low visibility and ceiling
Hail and violent turbulence
Icing is formed due to:
Supercooled water droplets freezing upon impact
Cooling of air to below its dew point and freezing point
Snow impacting the airframe part
Frost is formed:
by supercooled water droplets freezing upon impact
by air being cooled down to below its dew point and freezing point
snow accummulating on aircraft
Based on this METAR: LKPD 090430Z 28006KT 4000 -DZ BR OVC003 06/06 Q1015 NOSIG RMK YLO YLO
The fog may start forming
The fog is unlikely to form
The cloud ceiling is at 300 ft AMSL
Identify the report: LKPR 090430Z 22009KT 9999 -RA BKN010 OVC017 04/04 Q1015 NOSIG
This is a METAR report
This is a TAF report
Neither answer is correct
Based on the report: LKPR 090430Z 22009KT 9999 -RA BKN010 OVC017 04/04 Q1015 NOSIG
The dew point temperature is -4 degrees celsius
The dew point temperature is 4 degrees celsius
Neither answer is correct
Based on the report: LKPR 090430Z 22009KT 9999 -RA BKN010 OVC017 04/04 Q1015 NOSIG
Significant changes to weather are expected
No significant changes to weather are expected soon
Neither answer is correct
Identify the report: LKPR 090200Z 0903/1009 24007KT 8000 -RA OVC020 TEMPO 0903/0924 5000 -RA BR BKN010 PROB30 TEMPO 0903/0908 2500 RA BR BKN005 PROB40 TEMPO 1000/1008 1500 -DZ BCFG BR BKN002
This is a METAR report
This is a TAF report
Neither answer is correct
Based on this report
LKPR 090200Z 0903/1009 24007KT 8000 -RA OVC020 TEMPO 0903/0924 5000 -RA BR BKN010 PROB30 TEMPO 0903/0908 2500 RA BR BKN005 PROB40 TEMPO 1000/1008 1500 -DZ BCFG BR BKN002
The weather shall improve during the day
The weather will deteriorate during the day
The weather will improve, then deteriorate
Based on this report
LKPR 090200Z 0903/1009 24007KT 8000 -RA OVC020 TEMPO 0903/0924 5000 -RA BR BKN010 PROB30 TEMPO 0903/0908 2500 RA BR BKN005 PROB40 TEMPO 1000/1008 1500 -DZ BCFG BR BKN002
The weather shall improve during the day
We can expect patches of fog in the morning, the day after the report has been published
The report has been published on 9th day of the month at 3 o-clock (UTC) in the morning
Based on this report
LKPR 090200Z 0903/1009 24007KT 8000 -RA OVC020 TEMPO 0903/0924 5000 -RA BR BKN010 PROB30 TEMPO 0903/0908 2500 RA BR BKN005 PROB40 TEMPO 1000/1008 1500 -DZ BCFG BR BKN002
what visibility may be expected during the early morning on 9th?
down to 5 000 meters
down to 8 000 meters
down to 2 500 meters
