Aviation Seminars1 #3410. At approximately what altitude above the surface would the pilot expect the base of the cumuliform clouds if the surface air.

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Presentation transcript:

Aviation Seminars1 #3410. At approximately what altitude above the surface would the pilot expect the base of the cumuliform clouds if the surface air temperature is 82F. And the dewpoint is 38F.? A- 9,000 feet AGL B- 10,000 feet AGL C- 11,000 feet AGL

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Aviation Seminars4 #3399. Clouds, fog, or dew will always form when A- water vapor condenses B- water vapor is present C- relative humidity reaches 100 percent.

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Aviation Seminars7 # What are the processes by which moisture is added to unsaturated air? A- Evaporation and sublimation. B- Heating and condensation. C- Super saturation and evaporation.

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Aviation Seminars10 #5321. The general circulation of air associated with a high- pressure area in the Northern Hemisphere is A- outward, downward, and clockwise. B- outward, upward, and clockwise. C- inward, downward, and clockwise. Comm.

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Aviation Seminars13 #3422. One of the most easily recognized discontinuities across a front is A- a change in temperature. B- an increase in cloud coverage. C- an increase in relative humidity.

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Aviation Seminars16 #3403. Which measurement can be used to determine the stability of the atmosphere? A- Atmospheric pressure. B- Actual lapse rate. C- Surface temperature.

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Aviation Seminars19 #3406. Moist, stable air flowing upslope can be expected to A- produce stratus type clouds. B- cause showers and thunderstorms. C- develop convective turbulence.

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Aviation Seminars22 #3424. Steady precipitation preceding a front is an indication of A- stratiform clouds with moderate turbulence. B- cumuliform clouds with little or no turbulence. C- stratiform clouds with little or no turbulence.

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Aviation Seminars25 #3407. If an unstable air mass is forced upward, what type clouds can be expected ? A- Stratus clouds with little vertical development. B- Stratus clouds with considerable associated turbulence. C- Clouds with considerable vertical development and associated turbulence.

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Aviation Seminars28 #3385. 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.

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Aviation Seminars31 #5741. Which is the best technique for minimizing the wing load factor when flying in severe turbulence? A- Change power settings, as necessary, to maintain constant airspeed. B- Control airspeed with power, maintain wings level, and accept variations of altitude. C- Set power and trim to obtain an airspeed at or below maneuvering speed, maintain wings level, and accept variations of airspeed and altitude. Comm.

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Aviation Seminars34 #3412. What are the 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.

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Aviation Seminars37 #5327. When conditionally unstable air with high moisture content and very warm surface temperature is forecast, one can expect what type of weather? A- Strong updrafts and stratonimbus clouds. B- Restricted visibility near the surface over a large area. C- Strong updrafts and cumulonimbus clouds. Comm.

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Aviation Seminars40 #5339. The presence of standing lenticular altocumulus clouds is a good indication of A- lenticular ice formation in calm air. B- very strong turbulence. C- heavy icing conditions. Comm.

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Aviation Seminars43 #5366. Which statement is true regarding squall lines? A- They are always associated with cold fronts. B- They are slow in forming, but rapid in movement. C- They are nonfrontal and often contain severe, steady-state thunderstorms. Comm.

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Aviation Seminars46 #3419. Which clouds have the greatest turbulence? A- Towering cumulus. B- Cumulonimbus. C- Nimbostratus.

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Aviation Seminars49 #3436. 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.

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Aviation Seminars52 #3434. What feature is normally associated with the cumulus stage of a thunderstorm? A- Roll cloud. B- Continuous updraft. C- Frequent lightning.

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Aviation Seminars55 #5373. What minimum distance should exist between intense radar echoes before any attempt is made to fly between these thunderstorms? A- 20 miles. B- 30 miles. C- 40 miles.

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Aviation Seminars58 #3402. The presence of ice pellets at the surface is evidence that there A- are thunderstorms in the area. B- has been cold front passage. C- is a temperature inversion with freezing rain at a higher altitude.

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Aviation Seminars61 #3429. One in-flight condition necessary for structural icing to form is A- small temperature/dewpoint spread. B- stratiform clouds. C- visible moisture.

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Aviation Seminars64 #5361. Which statement is true concerning the hazards of hail? A- Hail damage in horizontal flight is minimal due to the vertical movement of hail in the clouds. B- Rain at the surface is a reliable indication of no hail aloft. C- Hailstones may be encountered in clear air several miles from a thunderstorm. Comm.

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Aviation Seminars67 #5385. The strength and location of the jet stream is normally A- weaker and farther north in the summer. B- stronger and farther north in the winter. C- stronger and farther north in the summer. Comm.

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