FAAの筆記試験(Knowledge Exam)について。　：　 Privateの筆記試験について　：　PVTの問題へ　：　IFR、筆記の解説　：　IFR問題へ

2008-09　Private Pilot Knowｌedge (Private Written) Exam 米国自家用操縦士筆記試験

341. PLT301
Which weather conditions should be expected beneath a low-level temperature inversion layer when the relative humidity is high?
A) Smooth air, poor visibility, fog, haze, or low clouds.
B) Light wind shear, poor visibility, haze, and light rain.
C) Turbulent air, poor visibility, fog, low stratus type clouds, and showery precipitation.

342. PLT495
Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
A) The appearance of an anvil top.
B) Precipitation beginning to fall.
C) Maximum growth rate of the clouds.

343. PLT192
The conditions necessary for the formation of cumulonimbus clouds are a lifting action and
A) unstable air containing an excess of condensation nuclei.
B) unstable, moist air.
C) either stable or unstable air.

344. PLT495
What conditions are necessary for the formation of thunderstorms?
A) High humidity, lifting force, and unstable conditions.
B) High humidity, high temperature, and cumulus clouds.
C) Lifting force, moist air, and extensive cloud cover.

345. PLT495
During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?
A) Cumulus.
B) Dissipating.
C) Mature.

346. PLT495
Thunderstorms reach their greatest intensity during the
A) mature stage.
B) downdraft stage.
C) cumulus stage.

347. PLT495
Thunderstorms which generally produce the most intense hazard to aircraft are
A) squall line thunderstorms.
B) steady-state thunderstorms.
C) warm front thunderstorms.

348. PLT495
A nonfrontal, narrow band of active thunderstorms that often develop ahead of a cold front is a known as a
A) prefrontal system.
B) squall line.
C) dry line.

349. PLT495
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?
A) Precipitation static.
B) Wind-shear turbulence.
C) Steady rain.

350. PLT263
Upon encountering severe turbulence, which flight condition should the pilot attempt to maintain?
A) Constant altitude and airspeed.
B) Constant angle of attack.
C) Level flight attitude.