Weather Theory QZ1 Flashcards
One of the most easily recognized discontinuities across a front is
1. a change in temperature
2. an increase in cloud coverage
3. an increase in relative humidity
- a change in temperature
During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
1. Dissipating
2. Cumulus
3. Mature
- Dissipating
Thunderstorms reach their greatest intensity during the
1. downdraft stage
2. mature stage
3. cumulus stage
- mature stage
What causes variations in altimeter settings between weather reporting points?
1. Unequal heating of the Earth’s surface
2. Coriolis force
3. Variation of terrain elevation
- Unequal heating of the Earth’s surface
The development of thermals depends upon
1. solar heating
2. a counterclockwise circulation of air
3. temperature inversions
- solar heating
(PAR-WT1-11) Convective circulation patterns associated with sea breezes are caused by
1. warm, dense air moving inland from over the water.
2. cool, dense air moving inland from over the water.
3. water absorbing and radiating heat faster than the land.
- cool, dense air moving inland from over the water.
A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is known as a
1. dry line
2. prefrontal system
3. squall line
- squall line.
If there is thunderstorm activity in the vicinity of an airport at which you plan to land, which hazardous atmospheric phenomenon might be expected on the landing approach?
1. Precipitation static
2. Wind-shear turbulence
3. Steady rain
- Wind-shear turbulence
The boundary between two different air masses is referred to as a
1. front
2. frontolysis
3. frontogenesis
- front
What conditions are necessary for the formation of thunderstorms?
1. Lifting force, moist air, and extensive cloud cover
2. High humidity, high temperature, and cumulus clouds
3. High humidity, lifting force, and unstable conditions
- High humidity, lifting force, and unstable conditions
What feature is normally associated with the cumulus stage of a thunderstorm?
1. Frequent lightning
2. Continuous updraft
3. Roll cloud
- Continuous updraft
The wind at 5,000 feet AGL is southwesterly while the surface wind is southerly. This difference in direction is primarily due to
1. stronger Coriolis force at the surface
2. friction between the wind and the surface
3. stronger pressure gradient at higher altitudes
- friction between the wind and the surface
One weather phenomenon which will always occur when flying across a front is a change in the
1. wind direction
2. type of precipitation
3. stability of the air mass
- wind direction
