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Instrument Rating- Airplane/Weather (No terms)
Terms in this set (171)
Q:2011. Weight and Balance
The Rate of descenbt required to stay on the ILS glide Slope
C.) Must be decreased if the ground speed is decreased.
What is an operational consideration if you fly into rain which freezes on impact
C.) Temperatures are above freezing at some higher altitudes
Hazardous Weather(E.g> IFR, Icing , turbulence,Etc) Meeting AIRMET or SIGMET criteria
B.) Must be used in conjunction with the FA to determine the hazardous information for the flight.
If you are using airborne weather radar to avoid thunderstorms, you should be aware that
B.) You may encounter hail several miles from the clouds.
What does a convective Outlook (AC) describe for the following 24 hour period?
A.) General thunderstorm activity.
You encounter freezing drizzle at your flight altitude. This is an indication that
A.)Warmer air is above you.
Which family of clouds is least likely to contribute to structural icing on an aircraft?
Decode the excerpt from the winds and temps aloft forecast(FD) for OKC at 39,000 feet.
FT 3000 6000 39000
B.) Winds 330° at 105 knots, temperature -58°C.
What meteorological conditions are depicted by a prognostic chart?
A.) Conditions forecast to exist as a specific time shown on the chart.
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?
C.) Unstable, moist air, and orographic lifting.
While flying a 3° glide slope , a headwind shears to a tailwind, Which conditions should the pilot expect on the glide slope?
A.) Airspeed and pitch attitude decrease and there is a tendency to go below glide slope.
If an aircraft on final approach and on glideslope encounters a sudden change from 20 knots tailwind to 20 knots headwind, the pilot should be ready to correct for
C.) Increased pitch and a tendency to go above the glideslope.
For the most effective use of the radar summary chart during preflight planning, a pilot should
B.) Know the chart displays precipitation only; it does not display clouds, fog, fronts, or other boundaries.
In what localities is advection fog most likely to occur?
C.) Coastal area's
A temperature inversion will normally form only
A.) in stable air.
Which is an effect of ice, snow or frost formation on an airplane wing?
B.) Decreased angle of attack for stalls.
Which of the following is a characteristic of a microburst
A.) Even high performance aircraft can lose significant altitude in a microburst
The hazardous inflight weather advisory (HIWAS) is a continuous broadcast over selected VOR's of
A.) SIGMET's Convective SIGMENTS, AIRMETs, Severe weather forecasts, Alerts, (AWW), and the Center Weather Advisories.
Which feature is associated with the tropopause?
A.) Abrupt change in the temperature lapse rate.
What is the approximate rate unsaturated air will cool flowing upslope (Dry adiabatic lapse rate)?
Which is a characteristic of low level wind shear as it relates to low level temperature inversions.?
C.) Allow airspeed to go above normal climb and approach speed.
An air mass is a body of air that
C.) Covers and extensive area and has fairly uniform properties of temperature and moisture.
during the mature stage of a thunderstorm, a pilot can expect hazards including
C.)Strong downdrafts, heavy rain and icing.
Ice tends to accumulate on certain parts of the plane, before others, that are
C)Small and narrow.
Frontal waves normally form on
A.) Slow moving cold fronts or stationary fronts.
When cruising in known icing conditions, you should
C.) Periodically disengage the autopilot and hand fly the aircraft.
Absence of the sky condition and visibility on ATIS broadcast specifically implies that
A.) The ceiling is more than 5,000 feet and visibility is 5 miles or more.
What weather would you expect if the temperature is -3°C and the dew point is -2°c?
Where do squall lines most often develop?
C.)Ahead of a cold front.
Your printed forecast for the winds and temperatures aloft at your altitude and locatio reads '272820' This indicates
C.)Wind is 270° true and 28 knots, temperature -20°c.
The average height of the troposphere in the middle latitude is
C) 37,000 Feet
Thrust is managed to maintain IAS, and glideslope is being flown What characteristic should be observed when a headwind shears to be a constant tailwind?
A.)Pitch attitude;Decreases;Required thrust:Increased, then reduced; Vertical speed:Increased;IAS: Decreases, then increases to approach speed.
Which forecast provides specific information concerning expected sky cover, Cloud tops visibility, weather, and obstructions to vision in a route format?
B.) 249 TWEB 252317
Surface friction in the mountainous area's will cause wind speed to
What weather phenomenon poses the greatest hazards to aircraft when operating near thunderstorms?
If the air temperature is +8°c at the elevation of 1,350 feet and a standard (average) temperature lapse rate exists, what will be the approximate freezing level?
C.)5,350 feet MSL.
You are scheduled to leave Kansas City at 0700 with an expected temperature of 40°F. The weather briefing indicated that a warm front with gulf moisture will be in the vicinity at that time. What weather phenomenon would you expect.?
What is essential for fog to form?
B.)Small temperature-dew point spread.
What relationship exists between the winds at 2,000 feet above the surface and the surface winds?
A.) The winds at 2,000 feet tend to parallel the isobars while the surface winds cross the isobars at an angle toward the lower pressure and are weaker.
Your weather briefing for a flight from DAL-MCO indicates an active Convective SIGMET that was issued an hour ago for central Florida. Your estimated flight time to MCO is 3 hours, with departure time in an hour, This SIGMET
C.) Will expire before your scheduled arrival time.
If you fly into sever turbulence, which flight conditions should you attempt to maintain?
C.) Level flight attitude.
What wind speed is represented by an entry of 9900 on a winds and temperatures aloft forecast (FD)?
B.)Winds variable at less than 5 knots.
The general characteristic of unstable air are
B.) Good visibility, Showery precipitation, and cumuliform type clouds.
Which clouds have the greatest turbulence?
Under which condition does advection fog usually form?
A.) Moist air moving over colder ground or water.
A.) No more than 3 knots.
Winds at 5,000 feet AGL on a particular flight are southwesterly while most of the surface winds are southerly. This difference is primarily due to
A.) Friction between the wind and the surface.
Fog is usually prevalent in industrial area's because of
A.) an abundance of condensation nuclei from combustion products.
Which is a characteristic of low level wind shear as it relates to frontal activity?
A.) With a warm front, the most critical period is before the front passes the airport.
Which weather phenomenon is always associated with the passage of a frontal system?
C.) A wind change.
Your destination reports temperature 15°C, Dew point 14°c, and winds 180° at 5 knots. What type of weather do you expect?
Maximum downdrafts in a microburst encounter may be a strong as
C.) 6,000 feet per minute.
The most frequent type of ground or surface based temperature inversions is that produced by
C.) Radiation on a clear, relatively still night.
What significant sky condition is reported in this METAR observation? METAR KBNA 1250Z 33018KT 290V360 1/2SM R31/2700ft+SN BLSNFG VV008 00/M03 A2991 RMK RAE42SNB42.
A. Sky is obscured with vertical visibility of 800 feet.
Area forecasts generally include a forecast period of 18 hours and cover a geographical
C.) Area the size of several states.
You are cruising in rain, with a flight level temperature above freezing. You can expect
B.) Possible structural icing.
The presence of ice pellets at the surface is evidence that
B.) There is freezing rain at a higher altitude.
The reporting station originating this aviation routine weather report has a filed elevation of 800 feet. If the reported sky cover is one continuous layer of 5,000 feet thick, above what indicated altitude should you be clear of the cloud layer? METAR KMDW 121856Z AUTO 32005KT 1 1/2SM+RABR OVC007 17/16 A2980
A.) 6,500 feet MSL
While airborne, which is true of in flight icing?
C.) Frost should be removed on the ground.
What type of clouds can be expected when an air mass is forced to ascend a mountain slope?
C.) Clouds with extensive vertical development.
What temperature conditions is indicated if wet snow is encountered at your flight altitude?
A.) The temperature is above freezing at your altitude.
Which source would best help the pilot determine current and forecast icing conditions.
A high cloud is composed mostly of
B.) Ice crystals
What is the most appropriate source to obtain information and destination weather at your arrival time?
A.) Terminal Aerodrome Forecast (TAF).
A pilot planning to depart at 1100Z on and IFR flight is particularly concerned about the hazard of icing. What sources reflect the most accurate information on icing conditions (Current and forecast) at the time of departure?
B.) Pilot weather reports (PIREP's), AIRMET's, and SIGMET's.
The strenght and location of the jet stream is normally
A. Weaker and farther north in the summer.
The operation of an airport rotating beacon during daylight hours may indicate
C. The visibility is less than 3 miles and/or Ceiling less than 1,000 feet.
An aircraft that encounters a headwind of 45 knots, within a microbusrt, may expect a total shear across the micorburst of
C.) 90 Knots.
Hazardous wind shear is commonly encountered near the ground
A.) During periods of strong temperature inversion and near thunderstorms.
Which meteorological condition is issued in the form of a SIGMET (WS)
A.) Widespread sand or dust storms lowering visibility to less than 3 miles.
Test data indicate that ice, snow, or frost having the thickness and roughness similar to medium or coarse sandpaper on the leading edge and upper surface of an airfoil can
B.) Reduce lift by as much as 30 percent and increase drag by %40 Percent.
When is the wind group at one of the forecast altitudes omitted at a specific location or station in the winds and temps aloft forecast (FD) When the wind
C.) At the altitude within 1,500 feet of the station elevation.
Which conditions result in the formation of frost?
C.) Temperature of the collecting surface is below the dew-point of surrounding air and the dew-point is colder than freezing.
A common type of ground or surface based temperature inversion is that which is produced by
A.) Ground radiation on clear, cool nights when the wind is light.
What situation is most conducive to the formation of radiation fog?
B.) Warm, moist air over low, flatland area's on clear, calm nights.
What are the determining factors in the stability of an air mass?
A.) Moisture and temperature.
What conditions can cause fog to form in lowland area's at night
B.) The movement of warm, moist air.
Pilots on IFR flights seeking ATC in flight weather avoidance assistance should keep in mind that
A.) ATC radar limitations and frequency congestion may limit the controllers capability to provide this service
To which meteorological condition does the term "Dew Point" Refer?
B.) The temperature to which air must be cooled to become saturated.
Even a small amount of accumulated ice is hazardous because it
C.) Increases weight and adversely impacts lift.
Weather variation results from
B.) Heating over the earth's surface
The low-level significant weather prognostic chart depicts weather conditions
A.) That are forecast to exist at a valid time shown on the chart.
Which thunderstorms generally produce the most severe conditions, such as heavy hail and destructive winds?
C.) Squall line.
When circumnavigating a large cumulonimbus cell, flying under the anvil
A.) Should be avoided due to the possibility of hail.
Which are characteristics of an unstable cold air mass moving over a warm surface?
A.) Cumilform clouds, turbulence,and good visibility
The general characteristic of the troposphere is
B.) Temperature decreases as altitude increases.
What is the RVR?
METAR KOKC 011955Z AUTO 220/15G25KT 180V250 3/4SM R17L/2600FT+TSRA BR OVC010CB 18/16 A 2992 RMK A02 TSB25 TS OHD MOV E SLP132
C.) 2600 Feet on RWY 17L
When a climb or descent through an inversion or wind shear zone is being performed, the pilot should be alert for which of the following change in airplane performance?
A.) A sudden change in airspeed
When water vapor condenses
A.) Clouds, fog or dew will form.
When the visibility is greater than 6SM on a TAF, it is expressed as
Stability can be determined for which measurement of the atmosphere?
C.) Ambient lapse rate
While enroute to destination, you receive approach clearance and descend to final approach altitude. After configuring the airplane for landing by extending landing gear and flaps, the nose pitches down. Suspecting ice-contaminated tailplane stall (ICTS) You should
A.)partially or completely retract the flaps and prepare for a no-flap approach and landing.
A station is forecasting wind and temperature aloft at FL390 to be 300° at 200 knots; Temperature -54°C. How would this data be encoded in an FD?
A weather report indicates a fast moving cold front is moving toward your planned route. The current weather along the route is warm temperature with high humidity. What weather conditions would a pilot expect in this situation?
A.)The development of a squall line with hazardous weather.
If standing lenticular clouds are seen over a mountainous area, a pilot should.
C.) Be aware of the severe mountain wave turbulence.
What are the requirements for the formation of a thunderstorm?
B.)Sufficient moisture, an unstable lapse rate, and lifting action.
During the weather briefing, you are informed that there is a fast moving low pressure trough that is expected along your route of flight. In this case, you should anticipate
C.) The possibility of sever weather.
In which situation is advection fog most likely to form?
C.) An air mass moving inland from the coast in winter.
Which weather condition should be expected beneath a low level temperature inversion layer when the relative humidity is high?
C.) Smooth air and poor visibility due to fog, haze, or low clouds.
Fair weather cumulus clouds often indicate
C.) Turbulence at and below the cloud level.
What type of clouds will be formed if very stable moist air is forced up slope?
C. Stratified clouds with little vertical development
A good indication of the stability of an air mass is
C.) The form and structure of the clouds.
A good indication of the stability of an air mass is
C.) The form and structure of the clouds
What aircraft performance can be expected with structural icing?
B.)Unpredictable flight characteristics.
Clouds,Fog or dew will always form when
B.)Water vapor condenses.
Which procedure is recommended if a pilot should unintentionally penetrate embedded thunderstorm activity?
C.) Set power for recommended turbulence penetration airspeed and attempt to maintain level flight attitude.
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 glide slope?
A.) Lower than normal power initially, followed by a further decrease as the wind shear is encountered, then an increase.
What enhances the growth rate of precipitation?
What are the four families of clouds.
C.) High, Middle, low and those with extensive vertical development
What is the expected duration of an individual micro-burst?
C.) Seldom longer than 15 minutes from the time the burst strikes the ground until dissipation.
When is the temperature at one of the forecast altitudes omitted at a specific location or station in the winds and temperatures aloft forecast (FD)?
B.)When the level is within 2,500 feet of the station elevation.
Where can wind shear associated with a thunderstorm be found? Choose the most complete weather
C.) On all sides of the thunderstorm cell and directly under the cell.
A ceiling is defined as the highest layer of the
A.) Lowest layer of clouds or obscuring phenomena aloft that is reported as broken or overcast.
Which is true regarding recovery procedures from aerodynamic stalls due to structural icing?
B.) Some measures for the recovery from ICTS are opposite of those for recovery from wing stall.
Which is true regarding the use of airborne weather-avoidance radar for the recognition of certain weather conditions?
A.) The radar scope provides no assurance of avoiding instrument weather conditions.
Which weather condition can be expected when moist air flows from a relatively warm surface to a colder surface
Interpret this PIREP
MRB UA/OV MRB/TM1430/FL060/TPC182/SK BKN BL/WX RA/TB MDT.
a.) aT 6,000 feet; between layers; moderate turbulence; moderate rain.
A pilot reporting turbulence that momentarily causes slight, erratic changes in altitude and/or attitude should report it as
B.) Light turbulence
A prognostic chart depicts the conditions
C.)Forecast to exist at a specific time in the future.
While en route on an IFR flight, you receive a report of moderate icing along your route. This indicates
A.) The rate of accumulation is potentially hazardous and activation of deicing equipment or diversion is necessary.
Where does wind shear occur?
A.) With either a wind shift or a wind speed gradient at any level in the atmosphere.
The station originating the following weather report has a field elevation of 1,300 feet MSL. From the bottom of the overcast cloud layer, what is its thcikness? (Tops of OVC are reported at 3800 feet)
SPECI KOKC 2228Z 28024G36KT 3/4SM BKN008 OVC020 28/23 A3000
A.) 500 feet
Structural icing will most likely form on the
Which weather phenomenon signals the beginning of the mature stage of a thunderstorm?
C.) the start of rain at the surface
When departing from an airport at sea level on a standard day, what temperature would you expect at 9,000 feet MSL?
What type of fog depend upon a wind in order to exist?
B.) Advection fog and up slope fog.
Which conditions are favorable for the formation of radiation fog?
b.) Clear sky, little or no wind, small temperature/dew point spread, and over a land surface.
The reporting station originating this aviation routine weather report has field elevation of 620 feet. if the reported sky cover is one continuous layer, what is its thickness? (Tops of OVC are reported at 6500 feet) METAR KMDW 121856Z AUTO 32005KT 1 1/2SM +RABR OVC007 17/16 A2980
B.) 5,180 feet.
What important information is provided by the radar summary chart that is not shown on the other weather charts?
C.)Lines and cells of hazardous thunderstorms.
Interpret this PIREP.
UUA/OV ORD/TM 1235/FLUNKN?TP B727/TB MOD/RM LLWS +/-20KT BLW 003 DURD RWY27L
B.) Urgent PIREP low level wind shear during descent to RWY 27L.
Which condition is favorable when you experience super-cooled large droplet icing?
C.) Ice can splash on a structure below +5°C.
What type of cloud layer should you expect when flying into an unstable air mass?
The body of a terminal aerodrome forecast(TAF) covers a geographical proximity within a
C.) 5 Statute mile radius from the center of an airport runway complex.
AIRMETS are issued on a scheduled basis every
A.) Six hours.
In which meteorological environment is aircraft structural icing most likely to have the highest rate of accumulation?
B.) Freezing rain.
What is an indication that downdrafts have developed and the thunderstorm cell has entered the mature stage?
C.) Precipitation begins to fall from the cloud base.
When are severe weather watch bulletins (WW) issued?
B.) Unscheduled and issued as required.
Q:2520/Weather Frost adhering to the wing will?
C.) Decrease the margin of airspeed above stall.
Q:1434/Weather What feature is associated with a temperature inversion.
C.) A stable layer of air.
Q:1535/Weather Which values are used for winds aloft forecasts?
B.) True direction and knots.
Q:2473/Weather Winds at 2,000 feet compared to winds at the surface are.
B.) Higher and go at the right angles to the isobars as compared to the winds at the surface due to friction.
Q:1469/Weather What is an important characteristic of wind shear?
B.) It is an atmospheric condition that may be associated with a low level temperature inversion, a jets stream, or a frontal zone.
Q:1472/Weather Why is frost considered hazardous to flight operations?
A.) Frost causes early airflow separation resulting in a loss of lift.
Q:1511/Weather What is the forecast wind at 1800Z in the following TAF? KMEM 091740Z 1818 000000KT 1/2SM RAFG OVC005=
Q:2708/Weather What can be expected upon arrival with reported clear skies and light winds at the surface, and winds reported as 25 knots gusting to 30 knots between 2,000 and 2,500 feet?
A.) Wind shear.
Q:1454/Weather Steady precipitation, in contrast to showers, preceding a front is an indication of
A.) Stratiform clouds with little or no turbulence.
Q:2858/Weather During a climb after takeoff at 3,000 feet AGL, You experience turbulence, notice that the OAT is warmer than the temperature on the ground and have climbed into clear sky conditions. This is an example of.
B.) a temperature inversion.
Q:2674/Weather Why is it best to avoid thunderstorms in the dissipating stage?
Q:2857/Weather On final approach, the wind shears from a tailwind to a headwind. What happens to your descent rate if you do nothing?
C.)Descent rate decreases.
Q:1440/Weather What causes surface winds to flow across the isobars at an angle rather than parallel to the isobars?
A.) Surface friction
Q:2841/Weather What would the temperature be at 8,000 feet MSL under standard conditions?
Q:1529/Weather What conclusion(s) can be drawn from a 500 milli-bar constant pressure chart for a flight planned at FL 180?
B.) Observed temperature, wind and temperature/dew point spread along the proposed route can be approximated.
Q:1450/Weather What determines the structure or type of clouds which form as a result of air being forced to ascend?
C.) The stability of the air before lifting occurs.
Q:1426/Weather A characteristic of the stratosphere is?
A.) Relatively small changes in temperature with an increase in altitude.
Q:1561/Weather What information is provided by a convective outlook (AC)?
A.) It defines areas of slight, moderate, and high risk of severe and general thunderstorm activity.
Q:1516/Weather What is the maximum forecast period for AIRMETS?
B.) Six hours.
Q:1505/Weather If squalls are reported at your destination, what wind conditions should you anticipate?
C.) Sudden increases in wind speed of at least 15 knots to a sustained wind speed of 20 knots, lasting for at least 1 minute.
Q:1519/Weather What is the wind shear forecast in the following TAF? TAF KCVG 231051Z 231212 12012KT 4SM- RA BR OVC008 WS005/27050KT TEMPO 1719 1/2SM -RA FG FM1930 09012KT 1SM-DZ BR VV003 BECMG 2021 5SM HZ=
A.) 500 feet AGL from 270 at 50 knots.
Q:1447/Weather Which precipitation type normally indicates freezing rain at higher altitudes?
A.) Ice pellets
Q:1154/Weather If severe turbulence is encountered during your IFR flight, the airplpane should be slowed to the design maneuvering speed because the?
C.) Amount of excess load that can be imposed on the wing will be decreased.
Q:1456/Weather Which is a characteristic of stable air
A.) Stratiform clouds
Q:1512/Weather SIGMET'S are issued as a warning of weather conditions potentially hazardous
B.) To all aircraft regardless of size or operating environment.
Q:1503/Weather What was the location of the aircraft at the time of this PIREP? UA/OV OKC 063064/TM 1522/FL080/TP C172/TA -04/WV 245040/TB LGT/RM IN CLR.
C.) 64 nautical miles on the 63 degree radial from Oklahoma City VOR at 1522 UTC.
Q:1430/Weather How much colder than standard temperature is the forecast temperature at 9,000 feet, as indicated in the following excerpt from the winds and temperatures aloft forecast? FT 6000 9000 .................0737-04 1043-10
Q:1441/Weather Which force, in the northern hemipshere, acts at a right angle to the wind and deflects it to the right until parallel to the isobars?
Q:1451/Weather The suffix "Nimbus", used in naming clouds, means a
A.) Rain cloud.
Q:1460/Weather What is indicated by the term "Embedded Thunderstorms"?
C.) Thunderstorms are obscured by massive cloud layers and cannot be seen.
Q:1500/Weather 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 VV009 00/M03 A2991 RMK RAE42SNB42
B.) Rain ended 42 past the hour, snow began 42 past the hour.
Q:1510/Weather "Wind" in the categorical outlook in the aviation area forcecast means that the wind during that period is forecast to be?
B.) Sustained surface wind speed of 20 knots or stronger.
Q:1520/Weather Which weather forecast describes prospects fro an area coverage of both severe and general thunderstorms during the following 24 hours?
Q:1530/Weather A constant pressure chart provides?
A.) A plan view of weather at a specific pressure altitude.
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