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term What causes variations in altimeter settings in between weather report points?
Definition Unequal heating of the earth"s surface.AW
Term The wind in ~ 5,000 ft AGL is southwesterly while the surface ar wind is southerly. This difference in direction is mainly due to
Definition friction in between the wind and also the surface.AW
Term Convective circulation patterns connected with sea breezes are led to by
Definition cool, thick air moving inland from over the water.AW
Term how will frost ~ above the wing of an airplane influence takeoff performance?
Definition Frost will certainly disrupt the smooth flow of air end the wing, adversely affecting its lifting capability.PHB
Term Every physical procedure of weather is add by, or is the result of, a
Definition heat exchange.AW
Term A temperature inversion would most likely result in which weather condition?
Definition An increase in temperature as altitude is increased.AW
Term The many frequent form of floor or surface-based temperature inversion is that which is created by
Definition terrestrial radiation on a clear, fairly still night.AW
Term i m sorry weather problems should be intended beneath a low-level temperature inversion layer once the loved one humidity is high?
Definition Smooth air, bad visibility, fog, haze, or short clouds.AW
Term What is supposed by the ax "dewpoint"?
Definition The temperature at which air need to be cooled to become saturated.AW
Term The amount of water vapor i beg your pardon air deserve 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 are the processes by which moisture is added to unsaturated air?
Definition Evaporation and condensation.AW
Term which conditions an outcome in the development of frost?
Definition The temperature the the collecting surface ar is in ~ or listed below the dewpoint the the adjacent air and the dewpoint is listed below freezing.AW
Term The presence of ice cream pellets in ~ the surface ar is proof that there
Definition is a temperature inversion v freezing rain in ~ a higher altitude.AW
Term What measurement deserve to be used to determine the stability of the atmosphere?
Definition Actual lapse rate.AW
Term What would certainly decrease the stability of an air mass?
Definition warming from below.AW
Term What is a characteristics of steady air?
Definition Stratiform cloudsAW
Term Moist, stable air flow upslope deserve to be expected to
Definition produce stratus form clouds.AW
Term IF an turbulent air mass is compelled upward, what form clouds can be expected?
Definition Clouds with considerable vertical advancement and associated turbulence.AW
Term What feature is associated with a temperature inversion?
Definition A steady layer the air.
Term What is the approximate basic of the cumulus clouds if the surface ar air temperature in ~ 1,000 ft MSL is 70F and the dewpoint is 48F?
Definition 6,000 ft MSLAW
Term At approximately what altitude above the surface would the pilot suppose the basic of cumuliform clouds if the surface air temperature is 82F and also the dewpoint is 38F?
Definition 10,000 ft AGLAW
Term What are features of a moist, rough air mass?
Definition Cumuliform clouds and showery precipitation.AW
Term What are characteristics of unstable air?
Definition Turbulence and great surface visibility.AW
Term A steady air mass is most most likely to have actually which characteristic?
Definition Smooth air.AW
Term The suffix "nimbus," supplied in naming clouds, means
Definition a rain cloud.AW
Term Clouds are separated into four households according to their
Definition height range.AW
Term The boundary in between two various air masses is described as a
Definition front.AW
Term among the most conveniently recognized discontinuities across a front is
Definition a readjust in temperature.AW
Term One weather phenomenon i m sorry will always occur as soon as flying across a former is a change in the
Definition wind direction.AW
Term stable precipitation preceding a front is one indication of
Definition stratiform clouds with small or no turbulence.AW
Term What situation is many conducive come the development of radiation fog?
Definition Warm, moise air over low, flatland locations on clear, patience nights.AW
Term If the temperature/dewpoint spread is tiny and decreasing, and also the temperature is 62F, what type weather is most likely to develop?
Definition Fog or low clouds.AW
Term In which instance is advection fog most most likely to form?
Definition An air mass relocating inland native the shore in winter.AW
Term What types of fog depend upon wind in order come exist?
Definition Advection fog and upslope fog.AW
Term Low-level turbulence have the right to occur and icing can end up being hazardous in which kind of fog?
Definition Steam fog.AW
Term one almond or lens-shaped cloud which appears stationary, yet which may contain winds the 50 knots or more, is referred to as
Definition a lenticular cloud.AW
Term Crests of standing mountain waves might be significant by stationary, lens-shaped clouds known as
Definition standing lenticular clouds.AW
Term What clouds have actually the best turbulence?
Definition CumulostratusAW
Term What cloud species would show convective turbulence?
Definition Towering cumulus clouds.AW
Term possible mountain tide turbulence might be anticipated as soon as winds that 40 knots or better blow
Definition across a hill ridge, and the wait is stable.AW
Term wherein does wind shear occur?
Definition At all altitudes, in every directions.AW
Term When might hazardous wind shear it is in expected?
Definition In areas of low-level temperature inversion, frontal zones, and also celar wait turbulence.AW
Term A pilot deserve to expected a wind-shear zone in a temperature turning back whenever the windspeed in ~ 2,000 to 4,000 feet over the surface ar is at least
Definition 25 knots.AW
Term One in-flight problem necessary because that structural icing to type is
Definition visible moisture.AW
Term In which environment is plane structural ice most most likely to have actually the highest accumulation rate?
Definition Freezing rain.AW
Term Why is frost thought about hazardous come flight?
Definition Frost spoils the smooth circulation of air over the wings, thereby decreasing lifting capability.AW
Term how does frost affect the lifting surfaces of an airplane on takeoff?
Definition Frost might prevent the airplane from ending up being airborne at normal takeoff speed.AW
Term The conditions necessary because that the formation of cumulonimbus clouds space a lifting action and
Definition unstable, moist air.AW
Term What attribute is normally connected with the cumulus stage of a thunderstorm?
Definition Continuous updraft.AW
Term i m sorry weather phenomenon signals the beginning of the mature phase of a thunderstorm?
Definition Precipitation beginning to fall.AW
Term What problems are vital for the development of thunderstorms?
Definition High humidity, lifting force, and also unstable conditions.AW
Term during the life bike of a thunderstorm, which phase is characterized predominately by downdrafts?
Definition Dissipating.AW
Term Thunderstorms reach their biggest intensity during the
Definition mature stage.AW
Term Thunderstorms which generally produce the most intense hazard to plane are
Definition squall line thunderstorms.AW
Term A nonfrontal, narrow band of energetic thunderstorms that often construct ahead that a cold former is recognized as a
Definition squall line.AW
Term If there is thunderstorm activity in the vicinity of one airport at which you setup to land, i beg your pardon hazardous atmospheric phenomenon could be intended on the landing approach?
Definition Wind-shear turbulence.AW
Term top top encountering significant turbulence, which flight problem should the pilot attempt to maintain?
Definition Level flight attitude.AW
Term which weather phenomenon is always associated with a thunderstorm?
Definition LightningAW
Term Wingtip vortices are created only when 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 produced by large aircraft tend to
Definition sink listed below the plane generating turbulence.PHB
Term as soon as taking off or landing in ~ an plane where heavy aircraft room operating, one need to be specifically alert come the perils of wingtip vortices due to the fact that this turbulence has tendency to
Definition sink right into the flightpath of plane operating below the plane generating the turbulence.PHB
Term The wind condition that needs maximum fist when preventing wake turbulence on landing is a
Definition light, quartering tailwind.PHB
Term once landing behind a huge aircraft, the pilot should avoid wake disturbance by staying
Definition above the big aircraft"s final approach path and also landing past the big aircraft"s touchdown point.PHB
Term once departing behind a heavy aircraft, the pilot must avoid wake turbulence by maneuvering the aircraft
Definition above and also upwind from the hefty aircraft.PHB
Term as soon as landing behind a large aircraft, i beg your pardon procedure should be adhered to for a vortex avoidance?
Definition Stay over its final approach flightpath every the way to touchdown.
Term how does the wake turbulence vortex circulate about each wingtip?
Definition Outward, upward, and also around each tip.PHB