Term
| A characteristic of the stratosphere is |
|
Definition
relatively small changes in temperature with an increase in altitude.
AC 00-6A |
|
|
Term
| The average height of the troposphere in the middle latitudes is |
|
Definition
|
|
Term
| Which feature is associated with the tropopause? |
|
Definition
Abrupt change in temperature lapse rate.
AC 00-6A |
|
|
Term
| A jet stream is defined as wind of |
|
Definition
50 knots or greater
AC 00-6A |
|
|
Term
| The strength and location of the jet stream normally |
|
Definition
weaker and farther north in the summer.
AC 00-6A |
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|
Term
| The primary cause of all changes in the Earth's weather is |
|
Definition
variation of solar energy received by the Earth's regions.
AC 00-6A |
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|
Term
How much colder than standart temperature is the forecast temperature at 9,000 ft, as indicated in the following excerpt from the Winds and Temperatures Aloft Forecast (FD)?
6,000: 0737-04
9,000: 1043-10 |
|
Definition
|
|
Term
| If the air temperature is +8C at an elevation of 1,350 ft and a standard (average) temperature lapse rate exists, what will be the approximate freezing level? |
|
Definition
|
|
Term
| A common type of ground or surface based temperature inversion is that which is produced by |
|
Definition
ground radiation on clear, cool nights when the wind is light.
AC 00-6A |
|
|
Term
| The most frequent type of ground- or surface-based temperature inversion is that produced by |
|
Definition
radiation on a clear, relatively still night.
AC 00-6A |
|
|
Term
| What feature is associated with a temperature inversion? |
|
Definition
A stable layer of air.
AC 00-6A |
|
|
Term
| A temperature inversion will normally form only |
|
Definition
|
|
Term
| Which weather condition should be expected beneath a low-level temperature inversion layer when the relative humidity is high? |
|
Definition
Smooth air and poor visibility due to fog, haze, or low clouds.
AC 00-6A |
|
|
Term
| What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars? |
|
Definition
surface friction.
AC 00-6A |
|
|
Term
| Winds at 5,000 ft AGL on a particular flight are southwesterly while most of te surface winds are southerly. This difference in direction is primarily due to |
|
Definition
a friction between the wind and the surface.
AC 00-6A |
|
|
Term
| What relationship exists between the winds at 2,000 ft above the surface and the surface winds? |
|
Definition
The winds at 2,000 ft tend to parallel the isobars while the surface winds cross the isobars at an angle toward lower pressure and are weaker.
AC 00-6A |
|
|
Term
| Which force, in the Northern Hemisphere, acts at a right angle to the wind and deflects it to the right until parallel to the isobars? |
|
Definition
|
|
Term
| Clouds, fog, or dew will always form when |
|
Definition
water vapor condenses.
AC 00-6A |
|
|
Term
| To which meteorological condition does the term "dew point" refer? |
|
Definition
The temperature to which air must be cooled to become saturated.
AC 00-6A |
|
|
Term
| The amount of water vapor which air can hold largely depends on |
|
Definition
|
|
Term
| What enhances the growth rate of precipitation? |
|
Definition
|
|
Term
| What temperature condition is indicated if wet snow is encountered at your flight altitude? |
|
Definition
The temperature is above freezing at your altitude.
AC 00-6A |
|
|
Term
| The presence of ice pellets at the surface is evidence that |
|
Definition
there is freezing rain at a higher alitude.
AC 00-6A |
|
|
Term
| Which precipitiation type normally indicates freezing rain at higher altitudes? |
|
Definition
|
|
Term
| Stability can be determined from which measurement of the atmosphere? |
|
Definition
Ambient lapse rate.
AC 00-6A |
|
|
Term
| What determines the structure or type of clouds which from as a result of air being forced to ascend? |
|
Definition
the stability of the air before lifting occurs.
AC 00-6A |
|
|
Term
| Unsaturated air flowing up slope will cool at the rate of approximately (dry adiabatic lapse rate) |
|
Definition
|
|
Term
| What type of clouds will be formed if very stable moise air is forced upslope? |
|
Definition
Stratified clouds with little vertical development.
AC 00-6A |
|
|
Term
| What type clouds can be expected when an unstable airmass is forced to ascend a mountain slope? |
|
Definition
Clouds with extensive vertical development.
AC 00-6A |
|
|
Term
| 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? |
|
Definition
Unstable, moist air, and orographic lifting.
AC 00-6A |
|
|
Term
| The suffix 'nimbus,' used in naming clouds, means a |
|
Definition
|
|
Term
| What are the four families of clouds? |
|
Definition
high, middle, low, and those with extensive vertical development.
AC 00-6A |
|
|
Term
| A high cloud is composed mostly of |
|
Definition
|
|
Term
| Which family of clouds is least likely to contribute to structural icing on an aircraft |
|
Definition
|
|
Term
| Which clouds have the greatest turbulence? |
|
Definition
|
|
Term
| Standing lenticular clouds, in mountainous areas, indicate |
|
Definition
|
|
Term
| The presence of standing lenticular altocumulous clouds is a god indication of |
|
Definition
very strong turbulence.
AC 00-6A |
|
|
Term
| Fair weather cumulus clouds often indicate |
|
Definition
turbulence at and below the cloud level.
AC 00-6A |
|
|
Term
| Fog is usually prevalent in industrial areas because of |
|
Definition
an abundance of condensation nuclei from combustion products.
AC 00-6A |
|
|
Term
| Under which condition does advection fog usually form? |
|
Definition
Moist air moving over colder ground or water.
AC 00-6A |
|
|
Term
| In which situation is advection fog most likely to form? |
|
Definition
An air mass moving inland from the coast in winter.
AC 00-6A |
|
|
Term
| In what localities is advection fog most likely to occur? |
|
Definition
|
|
Term
| What types of fog depend upon a wind in order to exist? |
|
Definition
Advection fog and upslope fog.
AC 00-6A |
|
|
Term
| What situation is most conducive to the formation of radiation fog? |
|
Definition
Warm, moist air over low, flatland areas on clear, calm nights.
AC 00-6A |
|
|
Term
| Which conditions are favorable for the formation of radiation fog? |
|
Definition
Clear sky, little or no wind, small temperature/dew point spread, and over a land surface.
AC 00-6A |
|
|
Term
| AWhich weather condition can be expected when moist air flows from a relatively warm surface to a colder surface? |
|
Definition
|
|
Term
| An air mass is a body of air that |
|
Definition
covers an extensive area and has fairly uniform properties of temperature an dmoisture.
AC 00-6A |
|
|
Term
| The general characteristics oc unstable air are |
|
Definition
good visibility, shower precipitation, and cumuliform-type clouds.
AC 00-6A |
|
|
Term
| What are some characteristics of unstable air |
|
Definition
Turbulence and good surface visibility.
AC 00-6A |
|
|
Term
| Which are characteristics of an unstable cold air mass moving over a warm surface? |
|
Definition
Cumuliform clouds, turbulence, and good visibility.
AC 00-6A |
|
|
Term
| Which is a characteristic of stable air? |
|
Definition
Stratiform clouds.
AC 00-6A |
|
|
Term
| What are the characteristics of stable air? |
|
Definition
Poor visibility, steady precipitation, and stratus-type clouds.
AC 00-6A |
|
|
Term
| Steady precipitation, in contrast to showers, preceding a front is an indication of |
|
Definition
stratiform clouds with little or no turbulence.
AC 00-6A |
|
|
Term
| Frontal waves normally form on |
|
Definition
slow moving cold fronts or stationary fronts
AC 00-6A |
|
|
Term
| Which weather phenomenon is always associated with the passage of a frontal system? |
|
Definition
|
|
Term
| If you fly into severe turbulence, which flight condition should you attempt to maintain? |
|
Definition
Level flight attitude.
AC 00-6A |
|
|
Term
| If severe turbulence is encountered during your IFR flight, the airplane should be slowed to the design maneuvering speed because the |
|
Definition
amount of excess load that can be imposed on the wing will be decreased.
AC 00-6A |
|
|
Term
| A pilot reporting turbulence that momentarily causes slight, erratic changes in altitude and/or attitude should report it as |
|
Definition
light turbulence.
AC 00-45 |
|
|
Term
| What are the requirements for the formation of a thunderstorm? |
|
Definition
Sufficient moisture, an unstable lapse rate, and a lifting action.
AC 00-6A |
|
|
Term
| Which weather phenomenon signals the beginning of a mature stage of thunderstorm? |
|
Definition
The start of rain at the surface.
AC 00-6A |
|
|
Term
| During the life cycle of a thunderstorm, which stage is characterized predominately by downdrafts? |
|
Definition
|
|
Term
| What is an indication that downdrafts have developed and the thunderstorm cell has entered the mature stage? |
|
Definition
Precipitation begins to fall from the cloud base.
AC 00-6A |
|
|
Term
| Where do squall lines most often develop? |
|
Definition
Ahead of a cold front.
AC 00-6A |
|
|
Term
| If squalls are reported at your destination, what wind conditions shoudl you anticipate? |
|
Definition
Sudden increases in wind speed of at least 16 knots, rising to 22 knots or more, lasting for at least a minute.
AC 00-45 |
|
|
Term
| Which thundrstorms generally produce the most sever conditions, such as heavy hail and destructive winds? |
|
Definition
|
|
Term
| What is indicated by the term "embedded thunderstorms"? |
|
Definition
Thunderstorms are obscured by massive cloud layers and cannot be seen.
AC 00-6A |
|
|
Term
| Which weather phenomenon is always associated with a thunderstorm? |
|
Definition
|
|
Term
| Which procedure is recommended if a pilot should unintentionally penetrate embedded thunderstorm activity? |
|
Definition
Set power for recommended turbulence penetration airspeed and attempt to maintain a level flight attitude.
AC 00-6A |
|
|
Term
| What is the expected duration of an individual microburst? |
|
Definition
Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation.
AIM 7.1.26 |
|
|
Term
| Maximum downdrafts in a microburst encounter may be as strong as |
|
Definition
6,000 ft per minute
AIM 7.1.26 |
|
|
Term
| An aircraft that encounters a headwind of 45 knots, within a microburst, may expect a total shear across the microburst of |
|
Definition
|
|
Term
(Refer to figure 13)
If involved in a microburst encounter, in which aircraft positions will the most severe downdraft occur? |
|
Definition
|
|
Term
(Refer to figure 13)
When penetrating a microburst, which aircraft will experience an increase in performance without a change in pitch or power? |
|
Definition
|
|
Term
(Refer to figure 13)
The aircraft in position 3 will experience which effect in a microburst encounter |
|
Definition
Strong downdraft.
AIM 7.1.26 |
|
|
Term
(Refer to figure 13)
What effect will a microburst encounter have upon the aircraft in position 4? |
|
Definition
Strong tailiwind.
AIM 7.1.26 |
|
|
Term
(refer to figure 13)
How will the aircraft in position 4 be affected by a microburst encounter? |
|
Definition
Performance decreasing with a tailwind and downdraft.
AIM 7.1.26 |
|
|
Term
| Which conditions result in the formation of frost? |
|
Definition
Temperature of the collecting surface is below the dewpoint of surrounding air and the dewpoint is colder than freezing.
AC 00-6A |
|
|
Term
| In which meteorological environment is aircraft structural icing most likely to have the highest rate of accumulation? |
|
Definition
|
|
Term
| What is an operational consideration if you fly into rain which freezes on impact? |
|
Definition
Temperatures are above freezing at some higher altitude.
AC 00-6A |
|
|
Term
| 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 |
|
Definition
reduce lift by as much as 30 percent and increase drag by 40 percent.
AC 120-58 |
|
|
Term
| During an IFR cross-country flight you picke dup rime icing which you estimate is 1/2" thick on the leading edge of the wigs. YOu are now below the clouds at 2,000 ft AGL and are approaching your destination airport under VFR. Visibility under the clouds is more than 10 miles, winds at the destination airport are 8 knots right down teh runway, and the surface temperature is 3C. You decide to: |
|
Definition
use a faster than normal approach and landing speed.
FAA-H-8083-3 |
|
|
Term
| Why is fronst considered hazardous to flight operation? |
|
Definition
Frost causes early airflow separation resulting in a loss of lift.
AC 00-6A |
|
|
Term
| Pilots should check for ice accumulation prior to flight by |
|
Definition
using a flashlight to reflect off a white wing.
AC 91-51 |
|
|
Term
| When icing is detected, particularly while operating an aircraft without deicing equipment, the pilot should |
|
Definition
leave the area of precipitation or go to an altitude where the temperature is above freezing.
FAA-H-8083-15 |
|
|
Term
| Tailplane icing can be detected by |
|
Definition
a sudden change in elevator force or uncommanded nose-down pitch.
FAA-H-8083-15 |
|
|
Term
| If tailplane icing or a tailplane stall is detected the pilot should |
|
Definition
retract the flaps and increase power.
FAA-H-8083-15 |
|
|
Term
| The most hazardous aspect of structural icing is that |
|
Definition
it can result in aerodynamic degradation including loss of lift.
FAA-H-8083-15 |
|
|
Term
Preventing ice from causing a hazard for aircraft certificated for flight into known icing conditions is accomplished by:
1. Spraying alcohol or glycol solution on the aircraft before takeoff.
2. A deicing system on the aircraft.
3. An anti-icing system on the aircraft.
Which statement is true? |
|
Definition
Only statements 2 and 3 are true.
FAA-H-8083-15 |
|
|
Term
| What should pilots do if icing is detected while also experiencing a rolling condition? |
|
Definition
Set power and angle of attack for a controlled descent.
AC 91-51A |
|
|
Term
| What autopilot function should you turn off if icing is suspected? |
|
Definition
Turn autopilot off.
AC 91-51A |
|
|
Term
| If icing is suspected on an airplane equipped with deicing equipment, the pilot should |
|
Definition
operate the pneumatic deicing system several times to clear the ice.
FAA-H-8083-15 |
|
|
Term
| The first place ice is likely to form on an aircraft is the |
|
Definition
|
|
Term
| If a pilot encounters freezing drizzle, he can assume that |
|
Definition
there is warmer air above.
FAA-H-8083-15 |
|
|
Term
| When flying through supercooled water droplets, the first sign of structural ice accumulation would be |
|
Definition
on probes and antennas.
FAA-H-8083-15 |
|
|
Term
| What actions should the pilot take in the event of suspected tailplane icing during an approach? |
|
Definition
Use partial or no flaps and no autopilot.
AC 91-51 |
|
|
Term
| Expect clear ice to form on the leading edge of airfoils when |
|
Definition
temperatures are close to freezing, there is a large volume of liquid water precipitation, and the aircraft is at high airspeeds.
FAA-H-8083-15 |
|
|
Term
| When flying through stratiform clouds, the best way to alleviate icing is by |
|
Definition
changing altitude to one with above-freezing temperatures or where temperatures are colder than -10C.
FAA-H-8083-15 |
|
|
Term
| Where does wind shear occur? |
|
Definition
With either a wind shift or a wind speed gradient at any level in the atmosphere.
AC 00-6A |
|
|
Term
| What is an important characteristic of wind shear? |
|
Definition
It may be associated with either a wind shift or a wind speed gradient at any level in the atmosphere.
AC 00-6A |
|
|
Term
| What is an important characteristic of wind shear? |
|
Definition
It is an atmosphereic condition that may be associated with a low-level temperature inversion, a jet stream, or a frontal zone.
AC 00-6A |
|
|
Term
| Which is a characteristic of low-level wind shear as it relates to frontal activity? |
|
Definition
With a warm front, the most cricital period is before the front passes the airport.
AC 00-6A |
|
|
Term
| Hazardous wind shear is commonly encountered near the ground |
|
Definition
during period of strong temperature inversion and near thunderstorms.
AC 00-6A |
|
|
Term
| Where can wind shear associated with a thunderstorm be found? Choose the most complete answer. |
|
Definition
On all sides of the thunderstorm cell and directly under the cell.
AC 00-6A |
|
|
Term
| When passing through an abrupt wind shear which involves a shift from a tailwind to a headwind, what power management would normally be required to maintain a constant indicated airspeed and ILS glid slope? |
|
Definition
Lower than normal power initially, followed by a further decrease as the wind shear is encountered, then an increase.
AC 00-54 |
|
|
Term
| While flying a 3 degree glide slope, a constant tailwind shears to a calm wind. Which conditions should the pilot expect? |
|
Definition
Airspeed and pitch attitude increase and there is a tendency to go above glide slope.
AC 00-54 |
|
|
Term
| Thrust is managed to maintain IAS, and glide slope is being flown. What characteristics should be observed when a headwind shears to be a constant tailwind? |
|
Definition
|
|
