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A characteristic of the stratosphere is?

The average height of the troposphere in the middle latitudes is

Which feature is associated with the tropopause?

A jet stream is defined as wind of

The strength and location of the jet stream is normally

The primary cause of all changes in the Earth’s weather is

How much colder than standard temperature is the forecast temperature at 9,000ft, as indicated in the following excerpt from the winds and temperature aloft forecast?

FT         6000           9000

0737-04     1043-10

If the air temperature is +8C at an elevation of 1,350ft and a standard temperature lapse rate exists, what will be the approximate freezing level?

If the air temperature is +8C at an elevation of 1,350ft and a standard temperature lapse rate exists, what will be the approximate freezing level?

The most frequent type of ground or surface based temperature inversion is that produced by

What feature is associated with a temperature inversion?

A temperature inversion will normally form only

Which weather conditions should be expected beneath a low level temperature inversion layer when the relative humidity is high?

What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars?

Winds at 5,000 feet AGL on a particular flight are southwesterly while most of the surface winds are southerly. This difference in direction is primarily due to

What relationship exists between the winds at 2,000 feet above the surface and the surface winds?

Which force in the Northern hemisphere acts at a right angle to the wind and deflects it to the right until parallel to isobars?

Clouds, fog, or dew will always form when

To which meteorological condition does the term “dew point” refer?

The amount of water vapor which air can hold largely depends on

What enhances the growth rate of precipitation?

What temperature condition is indicated if wet snow is encountered at your flight altitude?

The presence of ice pellets at the surface is evidence that

Which precipitation type normally indicates freezing rain at higher altitudes?

Stability can be determined from which measurement of the atmosphere?

What determines the structure or type of clouds which form as a result of air being forced to ascend?

Unsaturated air flowing up slope will cool at the rate of approximately (dry adiabatic lapse rate)

What type of clouds will be formed if very stable moist air is forced up slope?

What type clouds can be expected when an unstable air mass is forced to ascend a mountain slope?

Which of the following combinations of weather producing variables would likely result in cumuliform-type clouds, good visibility, rain showers, and possible clear-type icing in clouds?

The suffix “nimbus” used in naming clouds means a

What are the four families of clouds?

A high cloud is composed mostly of

Which family of clouds is least likely to contribute to structural icing on an aircraft?

Which clouds have the greatest turbulence?

Standing lenticular clouds, in mountainous areas indicate

The presence of standing lenticular altocumulus clouds is a good indication of

fair weather cumulus clouds often indicate

Fog is usually prevalent in industrial areas because of

Under which condition does advection fog usually form?

In which situation is advection fog most likely to form?

In what localities is advection fog most likely to occur?

What types of fog depend upon a wind in order to exist?

What situation is most conducive to the formation of radiation fog?

Which conditions are favorable for the formation of radiation fog?

Which weather condition can be expected when moist air flows from a relatively warm surface to a colder surface?

An air mass is a body of air that

The general characteristics of unstable air are

Which are characteristics of an unstable cold air mass moving over a warm surface?

Which is a characteristic of stable air?

What are the characteristics of stable air?

Steady precipitation, in contrast to showers, preceding a front is an indication of

Frontal Waves normally form on

Which weather phenomenon is always associated with the passage of a frontal system?

If you fly into sever turbulence, which flight condition should you attempt to maintain?

If severe turbulence is encountered during your IFR flight, the airplane should be slowed to the design maneuvering speed because the

A Pilot reporting turbulence that momentarily  causes slight, erratic changes in altitude and/or attitude should report as

What are the requirments for the formation ofa thunderstorm?

Which weather phenomenon signals the begining of the mature stage of a thunderstorm?

During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts?

What is an indication that downdrafts have developed and the thunderstorm cell has entered the mature stage?

Where do squall lines most often develop?

If squalls are reported at your destination, what wind conditions should you anticipate?

Which thunderstorms generally produce the most sever conditions, such as heavy hail and destructive winds?

What is indicated by the term “embedded thunder storms”?

Which weather phenomenon is always associated with a thunderstorm?

Which procedure is recommended if a pilot should unintentionally penetrate embedded thunderstorm activity?

What is the expected duration of an individual microburst?

Maximum downdrafts in a microburst encounter may be as strong as

An aircraft that encounters a headwind of 45 knots, within a microburst, may expect a total shear across the microburst of

If involved in a microburst encounterm in which aircraft position will the most sever downdraft occur?

Which conditions result in the formation of frost?

In which meteorological environment is aircraft sturctural icing most likely to have the higest rate of accumulation?

What is an operational consideration if you fly into rain which freezes on impact?

Test data indicate that ice, snow, or frost having a thickness and roughness similar to medium or coarse sandpaper on the leading edge and upper surface of an airfoil

Why is frost considered hazardous to flight operation?

When   icing is detected, particularly while operating an aircraft without decing equipment, the pilot should

Tailplane icing can be detected by

If tailplane icing or a tailplane stall is detected the pilot should

Which is true with regards to icing?

What is the most likely reason for buffeting or vibrations after extending the flaps during or exiting icing conditions?

The best technique for using deicing boots is to

How should deicing boots be used after exiting flight in icing conditions?

The most hazardous aspect of structural icing is that

Preventing ice from causing a hazard for aircraft certified for flight into known icing conditions is accomplished by

1. Spraying alcohol or glycol solution on the aircraft before take off
2. A deicing system on the aircraft
3. an ant-icing system on the aircraft

What is the purpose of a weeping wing?

What should pilots do if icing is detected while also experiencing a rolling condition?

What autopilot function should you turn off if iving is suspected?

A generally recommended practice for auto pilot usage during cruise flight in icing conditions  is

On initial climb out after takeoff and with the autopilot engaged, you encounter icing condition. In this situation you can expect

If icing is suspected on an airplane equipped with deiving equipment, the pilot should

The first place ice is likley to form on an aircraft is the

If a pilot encounters freezing drizzle, he can  assume that

when flying through supercooled water droplets, the first sign of structural ice accumulation would be

What actions should the pilot take in the event of suspected tailplane icing during an approach?

Expect clear ice to form on the leading edge of the airfoils when

When flying through stratiform clouds, the best way to alieviate icing is by

Where does wind shear occur?

What is an important characteristic of wind shear?

What is an important chacteristic of wind shear?

Which is a chateristic of low level wind shear as it relates to frontal activity?

Hazardous wind shear is commonly encoutered near the ground

Where can wind shear associated with a thunderstorm be found? Choose the most complete answer

While flying a 3 degree glide slope, a constant tailwind shears to a calm wind, which condition shoud the pilot expect?

While glying a 3 degree glide slope, a headwind shears to a tailwind. which conditions should the pilot expect on the glide slope?

When climb or descent through an inversion or wind shear zone is being performed, the pilot shoud be alert for which of the following change in airplane performance?

A ceiling is defined as the height of the

The station originating the following weather reprot has a field elevation of 1300 MSL. From the bottome of the overcast cloud layer, what is its thickness? (Tops of OVC are reported at 3800ft)

SPECI KOKC 2228Z 28024G36KT 3/4SM BKN008 OVC020 28/23 A3000

What is meant by the entry in the remarks section of the METAR surface report for KBNA?

METAR KBNA 211250Z 33018KT 290V260 1/2SM R31/2700FT +SN

BLSNFG VV008 00/M03 A2991  RMK RAE42SNB42