321. - PLT301
The presence of ice pellets at the surface is evidence that there
A) are thunderstorms in the area.
B) has been cold frontal passage.
C) is a temperature inversion with freezing rain at a higher altitude.
和訳 ： Ice Palletsに関係したお話
322. - PLT206
Which factor would tend to increase the density altitude at a given airport?
A) An increase in barometric pressure.
B) An increase in ambient temperature.
C) A decrease in relative humidity.
和訳と解説
323. - PLT345
What are the standard temperature and pressure values for sea level?
A) 15°C and 29.92 inches Hg.
B) 59°C and 1013.2 millibars.
C) 59°F and 29.92 millibars.
和訳 ： 解説
324. - PLT023
Under which condition will pressure altitude be equal to true altitude?
A) When the atmospheric pressure is 29.92 inches Hg.
B) When standard atmospheric conditions exist.
C) When indicated altitude is equal to the pressure altitude.
和訳 ： 解説
325. - PLT345
Under what condition is pressure altitude and density altitude the same value?
A) At sea level, when the temperature is 0°F.
B) When the altimeter has no installation error.
C) At standard temperature.
和訳 ： 解説
326. - PLT167
If a flight is made from an area of low pressure into an area of high pressure without the altimeter
setting being adjusted, the altimeter will indicate
A) the actual altitude above sea level.
B) higher than the actual altitude above sea level.
C) lower than the actual altitude above sea level.
和訳 ： 高度計について
327. - PLT023
Under what condition will true altitude be lower than indicated altitude?
A) In colder than standard air temperature.
B) In warmer than standard air temperature.
C) When density altitude is higher than indicated altitude.
和訳 ： 高度計について
328. - PLT512
What is the approximate base of the cumulus clouds if the surface air temperature at 1,000 feet
MSL is 70°F and the dewpoint is 48°F?
A) 4,000 feet MSL.
B) 5,000 feet MSL.
C) 6,000 feet MSL.
和訳 ： 大気のStabilityについて
329. - PLT511
What are characteristics of a moist, unstable air mass?
A) Cumuliform clouds and showery precipitation.
B) Poor visibility and smooth air.
C) Stratiform clouds and showery precipitation.
和訳 ： 大気のStabilityについて
330. - PLT511
What are characteristics of unstable air?
A) Turbulence and good surface visibility.
B) Turbulence and poor surface visibility.
C) Nimbostratus clouds and good surface visibility.
和訳 ： 大気のStabilityについて
