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hatchet What causes variations in altimeter settings between weather report points?
Definition Unequal heater of the earth"s surface.AW
Term The wind at 5,000 ft AGL is southwesterly if the surface wind is southerly. This distinction in direction is generally due to
Definition friction between the wind and also the surface.AW
Term Convective circulation patterns linked with sea breezes are brought about by
Definition cool, dense air relocating inland from over the water.AW
Term exactly how will frost top top the wing of an airplane influence takeoff performance?
Definition Frost will disrupt the smooth flow of air over the wing, adversely affecting its lifting capability.PHB
Term Every physical process of weather is attach by, or is the an outcome of, a
Definition heat exchange.AW
Term A temperature inversion would many likely an outcome in i m sorry weather condition?
Definition An rise in temperature as altitude is increased.AW
Term The many frequent kind of floor or surface-based temperature inversion is the which is created by
Definition terrestrial radiation on a clear, reasonably still night.AW
Term i m sorry weather problems should be meant beneath a low-level temperature inversion layer as soon as the family member humidity is high?
Definition Smooth air, negative visibility, fog, haze, or low clouds.AW
Term What is intended by the hatchet "dewpoint"?
Definition The temperature in ~ which air need to be cooled to end up being saturated.AW
Term The quantity of water vapor i beg your pardon air have the right to hold counts on the
Definition air temperature.AW
Term Clouds, fog, or dew will always type when
Definition water vapor condenses.AW
Term What room the processes through which moisture is included to unsaturated air?
Definition Evaporation and also condensation.AW
Term which conditions result in the development of frost?
Definition The temperature of the collecting surface ar is at or listed below the dewpoint of the adjacent air and also the dewpoint is below freezing.AW
Term The presence of ice pellets at the surface is proof that there
Definition is a temperature inversion v freezing rain at a higher altitude.AW
Term What measurement can be used to recognize the stability of the atmosphere?
Definition Actual slide away rate.AW
Term What would decrease the stability of an air mass?
Definition warming native below.AW
Term What is a characteristics of stable air?
Definition Stratiform cloudsAW
Term Moist, stable air flow upslope deserve to be expected to
Definition produce stratus kind clouds.AW
Term IF an unstable air massive is required upward, what type clouds have the right to be expected?
Definition Clouds with substantial vertical advance and associated turbulence.AW
Term What attribute is connected with a temperature inversion?
Definition A secure layer of air.
Term What is the approximate base of the cumulus clouds if the surface air temperature in ~ 1,000 ft MSL is 70F and the dewpoint is 48F?
Definition 6,000 ft MSLAW
Term At around what altitude above the surface ar would the pilot mean the basic of cumuliform clouds if the surface air temperature is 82F and the dewpoint is 38F?
Definition 10,000 ft AGLAW
Term What are qualities of a moist, turbulent air mass?
Definition Cumuliform clouds and also showery precipitation.AW
Term What are features of stormy air?
Definition Turbulence and good surface visibility.AW
Term A stable air mass is most likely to have which characteristic?
Definition Smooth air.AW
Term The suffix "nimbus," provided in specify name clouds, means
Definition a rain cloud.AW
Term Clouds are split into four families according to their
Definition height range.AW
Term The boundary between two different air masses is referred to as a
Definition front.AW
Term among the most conveniently recognized discontinuities throughout a former is
Definition a readjust in temperature.AW
Term One weather phenomenon which will constantly occur as soon as flying across a front is a change in the
Definition wind direction.AW
Term stable precipitation coming before a former is an indication of
Definition stratiform clouds with little or no turbulence.AW
Term What case is many conducive to the development of radiation fog?
Definition Warm, moise air end low, flatland locations on clear, calm nights.AW
Term If the temperature/dewpoint spread is tiny and decreasing, and the temperature is 62F, what form weather is most likely to develop?
Definition Fog or short clouds.AW
Term In which situation is advection fog most likely to form?
Definition An wait mass relocating inland indigenous the shore in winter.AW
Term What species of fog count upon wind in order come exist?
Definition Advection fog and also upslope fog.AW
Term Low-level turbulence deserve to occur and icing can come to be hazardous in which form of fog?
Definition Steam fog.AW
Term an almond or lens-shaped cloud which appears stationary, however which may contain winds of 50 knots or more, is described as
Definition a lenticular cloud.AW
Term Crests of standing mountain waves may be marked by stationary, lens-shaped clouds known as
Definition standing lenticular clouds.AW
Term What clouds have the greatest turbulence?
Definition CumulostratusAW
Term What cloud types would indicate convective turbulence?
Definition Towering cumulus clouds.AW
Term possible mountain wave turbulence can be anticipated as soon as winds of 40 knots or better blow
Definition across a hill ridge, and also the wait is stable.AW
Term where does wind shear occur?
Definition At every altitudes, in all directions.AW
Term When might hazardous wind shear be expected?
Definition In locations of low-level temperature inversion, frontal zones, and celar waiting turbulence.AW
Term A pilot have the right to expected a wind-shear zone in a temperature turning back whenever the windspeed at 2,000 to 4,000 feet over the surface is at least
Definition 25 knots.AW
Term One in-flight condition necessary for structural icing to type is
Definition visible moisture.AW
Term In which environment is aircraft structural ice cream most most likely to have the highest buildup rate?
Definition Freezing rain.AW
Term Why is frost taken into consideration hazardous to flight?
Definition Frost spoils the smooth circulation of air end the wings, thereby decreasing lifting capability.AW
Term how does frost influence the lifting surfaces of an airplane on takeoff?
Definition Frost might prevent the aircraft from ending up being airborne at common takeoff speed.AW
Term The problems necessary because that the formation of cumulonimbus clouds are a lifting action and
Definition unstable, moist air.AW
Term What feature is normally associated with the cumulus stage of a thunderstorm?
Definition Continuous updraft.AW
Term i beg your pardon weather phenomenon signal the beginning of the mature stage of a thunderstorm?
Definition Precipitation beginning to fall.AW
Term What conditions are essential for the formation of thunderstorms?
Definition High humidity, lifting force, and also unstable conditions.AW
Term during the life bicycle of a thunderstorm, which stage is characterized predominately by downdrafts?
Definition Dissipating.AW
Term Thunderstorms reach their greatest intensity throughout the
Definition mature stage.AW
Term Thunderstorms i m sorry generally produce the most intense hazard to plane are
Definition squall line thunderstorms.AW
Term A nonfrontal, small band of energetic thunderstorms the often build ahead that a cold front is well-known as a
Definition squall line.AW
Term If there is thunderstorm activity in the vicinity of an airport in ~ which you setup to land, i beg your pardon hazardous atmospheric phenomenon could be expected on the landing approach?
Definition Wind-shear turbulence.AW
Term ~ above encountering significant turbulence, which flight condition should the pilot attempt to maintain?
Definition Level flight attitude.AW
Term i m sorry weather phenomenon is always associated with a thunderstorm?
Definition LightningAW
Term Wingtip vortices are produced only once an plane is
Definition developing lift.PHB
Term The greatest vortex toughness occurs once the generating aircraft is
Definition heavy, clean, and slowPHB
Term Wingtip vortices developed by big aircraft have tendency to
Definition sink listed below the aircraft generating turbulence.PHB
Term as soon as taking turn off or landing at an airplane where hefty aircraft room operating, one have to be specifically alert come the hazards of wingtip vortices due to the fact that this turbulence tends to
Definition sink right into the flightpath of aircraft operating below the plane generating the turbulence.PHB
Term The wind condition that requires maximum caution when staying clear of wake turbulence on landing is a
Definition light, quartering tailwind.PHB
Term as soon as landing behind a large aircraft, the pilot have to avoid wake disturbance by staying
Definition above the big aircraft"s final technique path and also landing past the huge aircraft"s touchdown point.PHB
Term as soon as departing behind a hefty aircraft, the pilot should avoid wake disturbance by maneuvering the aircraft
Definition above and upwind native the hefty aircraft.PHB
Term once landing behind a huge aircraft, i m sorry procedure have to be followed for a vortex avoidance?
Definition Stay above its final approach flightpath every the means to touchdown.
Term just how does the wake disturbance vortex circulate approximately each wingtip?
Definition Outward, upward, and around every tip.PHB