CAX Written - Weather
Every physical process of weather is accompanied by or is the result of - correct answer ✔✔a heat
exchange.
What is the standard temperature at 10,000 ft - correct answer ✔✔-5 deg C
What is the standard temperature at 20,000 ft - correct answer ✔✔-25 deg C
Which conditions are favorable for the formation of a surface based temperature inversion? - correct
answer ✔✔Clear, cool nights with calm or light wind
What are the standard temperature and pressure values for sea level? - correct answer ✔✔15 C and
29.92 Hg
What causes wind? - correct answer ✔✔Pressure differences
In the Northern Hemisphere, the wind is deflected to the - correct answer ✔✔right by Coriollis Force
Why does the wind have a tendency to flow parallel to the isobars above the friction level? - correct
answer ✔✔Coriolis force tends to counterbalance the horizontal pressure gradient
The wind system associated with a low-pressure area in the Northern Hemisphere is - correct answer
✔✔a cyclone and is caused by Coriolis force
With regard to windflow patterns shown on surface analysis charts; when the isobars are - correct
answer ✔✔close together, the pressure gradient force is greater and wind velocities are stronger
What prevents air from flowing directly from high-pressure areas to low-pressure areas? - correct answer
✔✔Coriolis force
, While flying cross country, in the Northern Hemisphere, you experience a continuous left crosswind
which is associated with a major wind system. This indicates that you - correct answer ✔✔are flying
toward an area of generally unfavorable weather conditions
Which is true with respect to a high- or low-pressure system? - correct answer ✔✔A high-pressure area
or ridge is an area of descending air.
Which is true regarding high- or low-pressure system? - correct answer ✔✔A low-pressure area or
trough is an area of rising air
When flying into a low-pressure area in the Northern Hemisphere, the wind direction and velocity will be
from the - correct answer ✔✔left and increasing
Which is true regarding actual air temperature and dew point temperatures spread? The temperature
spread - correct answer ✔✔deceases as the relative humidity increases
The general circulation of air associated with a high-pressure area in the Northern Hemisphere is -
correct answer ✔✔outward, downward, and clockwise
Virga is best described as - correct answer ✔✔streamers of precipitation trailing beneath clouds which
evaporates before reaching the ground
Moisture is added to air by - correct answer ✔✔evaporation and sublimation
Ice pellets encountered during flight normally are evidence that - correct answer ✔✔a warm front is
about to pass
What is indicated if ice pellets are encountered at 8,000 ft? - correct answer ✔✔Freezing rain at higher
altitudes
Every physical process of weather is accompanied by or is the result of - correct answer ✔✔a heat
exchange.
What is the standard temperature at 10,000 ft - correct answer ✔✔-5 deg C
What is the standard temperature at 20,000 ft - correct answer ✔✔-25 deg C
Which conditions are favorable for the formation of a surface based temperature inversion? - correct
answer ✔✔Clear, cool nights with calm or light wind
What are the standard temperature and pressure values for sea level? - correct answer ✔✔15 C and
29.92 Hg
What causes wind? - correct answer ✔✔Pressure differences
In the Northern Hemisphere, the wind is deflected to the - correct answer ✔✔right by Coriollis Force
Why does the wind have a tendency to flow parallel to the isobars above the friction level? - correct
answer ✔✔Coriolis force tends to counterbalance the horizontal pressure gradient
The wind system associated with a low-pressure area in the Northern Hemisphere is - correct answer
✔✔a cyclone and is caused by Coriolis force
With regard to windflow patterns shown on surface analysis charts; when the isobars are - correct
answer ✔✔close together, the pressure gradient force is greater and wind velocities are stronger
What prevents air from flowing directly from high-pressure areas to low-pressure areas? - correct answer
✔✔Coriolis force
, While flying cross country, in the Northern Hemisphere, you experience a continuous left crosswind
which is associated with a major wind system. This indicates that you - correct answer ✔✔are flying
toward an area of generally unfavorable weather conditions
Which is true with respect to a high- or low-pressure system? - correct answer ✔✔A high-pressure area
or ridge is an area of descending air.
Which is true regarding high- or low-pressure system? - correct answer ✔✔A low-pressure area or
trough is an area of rising air
When flying into a low-pressure area in the Northern Hemisphere, the wind direction and velocity will be
from the - correct answer ✔✔left and increasing
Which is true regarding actual air temperature and dew point temperatures spread? The temperature
spread - correct answer ✔✔deceases as the relative humidity increases
The general circulation of air associated with a high-pressure area in the Northern Hemisphere is -
correct answer ✔✔outward, downward, and clockwise
Virga is best described as - correct answer ✔✔streamers of precipitation trailing beneath clouds which
evaporates before reaching the ground
Moisture is added to air by - correct answer ✔✔evaporation and sublimation
Ice pellets encountered during flight normally are evidence that - correct answer ✔✔a warm front is
about to pass
What is indicated if ice pellets are encountered at 8,000 ft? - correct answer ✔✔Freezing rain at higher
altitudes
