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114 Cards in this Set
- Front
- Back
351. Gusty wind is coded as a in the wind group of a METAR. |
D. G
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352. In the contiguous United States of America region, the ICAO Station Identifier prefix is _. A. PA B. P C. KA D. K |
D. K
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353. “A scheduled report transmitted at fixed intervals” describes a . A. METAR B. SPECI C. TAF D. UUA |
A. METAR
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354. In the date/time field of a METAR, _. A. the first two digits are the date, the second two digits are the hour, and the last two digits are the minutes in UTC B. the six digits represent the hour, minutes, and seconds of the observation in UTC C. the first two digits are the date, the second two digits are the hour, and the last two digits are the minutes in local time D. the six digits represent the hour, minutes, and seconds of the observation in local time |
A. the first two digits are the date, the second two digits are the hour, and the last two digits are the minutes
in UTC |
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355. A sky coverage of six-eighths is reported as . A. BKN B. FEW C. SCT D. SKC |
A. BKN
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356. What term refers to the greatest distance that can be seen throughout at least half the horizon circle (180 degrees), not necessarily continuous? A. Runway Visual Range (RVR) B. Sector visibility C. Tower visibility D. Prevailing visibility |
D. Prevailing Visibility
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357. What is an instrumentally derived value that represents the horizontal distance a pilot may see down the runway from the approach end? A. Runway Visual Range (RVR) B. Sector visibility C. Tower visibility D. Prevailing Visibility |
A. Runway Visual Range (RVR)
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358. In the METAR/SPECI Sky Condition Group, heights are reported in . A. hundreds of feet AGL B. thousands of feet AGL C. hundreds of feet MSL D. thousands of feet MSL |
A. Hundreds of feet AGL
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359. In a METAR/SPECI report, what do temperatures and dew points prefixed with an “M” signify? A. Missing B. Below zero C. ”more than” D. Degrees Fahrenheit |
B. below zero
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360. SPECI KHYS 092338Z AUTO… A. “Hays, automated, special report, three eight observation…” B. “Hays, special report, automated, two three three eight observation…” C. “Hays, special report, automated two three three eight zulu observation…” D. “Special report, Hays, two three three eight zulu observation, automated…” |
A. “Hays, automated, special report, three eight observation…”
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361. Based on the following METAR, the visibility is _. KOKC 181456Z 01010KT 10SM FEW055 BKN100 04/M02 A2992 RMK AO2 SLP070 A. 4 statute miles B. 10 nautical miles C. 10 statute miles D. missing |
C. 10 statute miles
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362. R17/M0600FT A. “Runway one seven R-V-R less than six hundred” B. “Runway one seven visual range more than six hundred feet” C. “R-V-R runway one seven below six hundred” D. “R-V-R runway one seven less than six hundred feet” |
A. “Runway one seven R-V-R less than six hundred”
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363. SCT030 BKN080 OVC120 A. “Scattered three thousand, ceiling broken eight hundred, overcast one two thousand” B. “Scattered three thousand, broken eight hundred, ceiling one two thousand overcast” C. “Three thousand scattered, ceiling eight thousand broken, one two thousand overcast” D. “Three thousand scattered, eight thousand broken, ceiling one thousand two hundred overcast” |
C. “Three thousand scattered, ceiling eight thousand broken, one two thousand overcast”
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364. PK WND 23034/43 A. “Peak wind two three zero at three four happened at four three zulu” B. “Peak wind two three zero at three four occurred at four three past the hour” C. “Peak wind two three zero degrees at three four knots occurred at four three zulu” D. “Peak wind two hundred thirty degrees at thirty-four knots occurred at forty-three zulu” |
B. “Peak wind two three zero at three four occurred at four three past the hour”
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365. CIG 005V008 A. “Ceiling five hundred variable eight hundred” B. “Ceiling five hundred feet variable eight hundred feet“ C. Ceiling variable between five hundred and eight hundred” D. “Ceiling variable between five hundred feet and eight hundred feet” |
C. Ceiling variable between five hundred and eight hundred”
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530. In a METAR/SPECI Wind Group, wind speed is referenced to which unit of measure? A. Knots B. Meters per second C. Miles per hour D. Kilometers per hour |
A. knots
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531. +TSRAGR A. “Heavy thunderstorm, rain, snow grains” B. “Severe thunderstorm, rain showers, hail” C. “Thunderstorm, heavy rain, hail” D. “Thunderstorm, heavy rain showers, snow grains” |
C. “Thunderstorm, heavy rain, hail”
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544. Which of the following METAR code groups designate a ceiling? A. FEW045 B. CLR C. VV006 D. SCT100 |
C. VV006
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545. Based on the following METAR, the temperature is . KOKC 181456Z 23015G28KT 10SM FEW025 SCT040 BKN150 OVC200 01/M01 A2981 RMK AO2 SLP096 A. 1°F B. 1°C C. –1°F D. –1°C |
B. 1°C
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556. What is an unscheduled report that is taken when certain criteria have been observed? A. AUTO B. METAR C. COR D. SPECI |
D. SPECI
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557. M1/4SM FG A. “Visibility below one-quarter, fog” B. “Visibility less than one-quarter, fog” C. “Visibility less than one-quarter statute mile, fog” D. “Visibility minus one-quarter statute mile, fog” |
B. “Visibility less than one-quarter, fog”
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597. Which of the following METAR code groups does NOT designate a ceiling? A. BKN045 B. VV006 C. SKC D. OVC100 |
C. SKC
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650. The following METAR observation was taken at . KOKC 181456Z 23015G28KT 10SM FEW025 01/M01 A2981 RMK AO2 SLP096 A. 1815 local time B. 1456 UTC C. 1815 UTC D. 1456 local time |
B. 1456 UTC
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690. Gusty wind is coded as a in the wind group of a METAR. A. B B. W C. T D. G |
D. G
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165. The valid period of a routine TAF beginning at 0000Z on the 10th day of the month would be coded as A. 1000/1100 B. 1000/1104 C. 1000/1112 D. 1000/1024 |
D. 1000/1024
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166. A forecast of non-convective LLWS would be found in what NWS product? A. SIGMET B. TAF C. Convective SIGMET D. SPECI |
B. TAF
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167. Which of the following NWS products is scheduled? A. AIRMET ZULU B. SIGMET C. MIS D. CWA |
A. AIRMET ZULU
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168. A forecast of visibility less than one mile would be found in what NWS product? A. SIGMET B. AIRMET SIERRA C. CWA D. METAR |
B. AIRMET SIERRA
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532. Which in-flight advisory would provide a forecast of occasionally severe turbulence over Colorado? A. AIRMET Tango B. AIRMET Zulu C. SIGMET D. Convective SIGMET |
C. SIGMET
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533. What product is for ATC use to alert pilots of existing or anticipated adverse weather conditions within the next two hours? A. AIRMET B. FA C. TAF D. CWA |
D. CWA
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546. Convective SIGMETs are valid for hours and are used to report convective weather significant to the safety of all aircraft. A. four B. two C. three D. six |
B. two
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547. A Meteorological Impact Statement (MIS) is _. A. an unscheduled discussion product that summarizes anticipated weather conditions with potential impact on air traffic flow control and flight operations in an ARTCC’s area of responsibility B. an unscheduled weather advisory issued by CWSU meteorologists for ATC use to alert pilots of existing or anticipated adverse weather conditions within the next two hours C. a concise statement of the expected meteorological conditions significant to aviation for a specified time period within 5SM of an airport. D. a weather advisory concerning convective weather significant to the safety of all aircraft |
A. an unscheduled discussion product that summarizes anticipated weather conditions with potential impact
on air traffic flow control and flight operations in an ARTCC’s area of responsibility |
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558. TAFs are used by air traffic controllers to anticipate weather changes that will affect aircraft operations_. A. within an air route traffic control center’s (ARTCC’s) airspace B. within a terminal radar approach control (TRACON) facility’s airspace C. along specified routes of flight D. at specified terminals |
D. at specified terminals
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559. Which in-flight advisory would provide a forecast of moderate icing over New York and Pennsylvania? A. AIRMET Sierra B. AIRMET Tango C. AIRMET Zulu D. SIGMET |
C. AIRMET Zulu
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560. A computer generated forecast of wind direction, wind speed, and temperature at selected times, altitudes, and locations is a(n) forecast. A. area B. automated barometric information C. terminal aerodrome D. wind and temperature aloft |
D. wind and temperature aloft
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599. What type of forecast is issued when specific conditions are affecting or are expected to affect an area of at least 3,000 square miles or an area judged to have a significant impact on the safety of aircraft operations? A. AIRMET B. Convective SIGMET C. SIGMET D. CWA |
C. SIGMET
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651. Based on the following TAF, what is the earliest time thunderstorms and rain can be expected? KOKC 051130Z 0512/0612 14008KT 5SM BR BKN030 TEMPO 0513/0516 1 1/2SM BR FM051600 16010KT P6SM SKC FM051900 20013G25KT 4SM SHRA OVC020 FM060500 20010G20KT 2SM SHRA BKN010 PROB30 0507 2SM TSRA OVC008CB FM060800 21015KT P6SM SCT040= A. 5th day at 1200Z B. 5th day at 1900Z C. 6th day at 1600Z D. 6th day at 0500Z |
D. 6th day at 0500Z
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652. Which type of bulletin uses the alphabetic designators Sierra, Tango, or Zulu to indicate the type of condition being reported? A. AIRMET B. MIS C. SIGMET D. WST |
A. AIRMET
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691. What forecast product provides a plain language, non-technical description of weather expected to occur over an extended period ranging from several hours to two days? A. AIRMET B. MIS C. SIGMET D. WST |
B. MIS
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366. The purpose of a Pilot Weather Report (PIREP) is . A. to report a pilot’s position B. to report meteorological conditions in flight C. to report a pilot incident D. a pilot’s report of an accident |
B. to report meteorological conditions in flight
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367. PIREPs are used by to expedite the traffic flow in the vicinity of an airport. A. the National Weather Service B. Flight Service Stations C. centers D. towers and TRACONs |
D. towers and TRACONs
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368. Air traffic facilities must solicit PIREPs when is reported. A. light turbulence B. visibility of 5 miles or less C. a ceiling at or below 10,000 feet D. icing of trace or greater intensity |
B. visibility of 5 miles or less
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369. Each PIREP must include the type of aircraft, altitude, location, and . A. coordinated universal time B. the temperature in degrees Celsius C. remarks D. local time |
A. coordinated universal time
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370. When preparing PIREPs involving turbulence or icing, shall always be included. A. Sky condition B. Visibility C. Intensity D. Wind |
C. Intensity
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371. The following PIREP indicates the base of the second cloud layer is . UA/OV MKC-JOT/TM 1100/FL080/TP C182/SK BKN025-TOP045/OVC050-TOP075/WX FV99/TA08 A. 5,000 feet AGL B. 4,500 feet MSL C. 7,500 feet AGL D. 5,000 feet MSL |
D. 5,000 feet MSL
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OKC UA /OV OKC180010/TM 1516/FL120/TP TA20/SK 035 BKN 075/OVC095-TOPUNKN/WX FV01SM SN/TA M04/TB MOD 050-070/RM TCU W DURC 372. At what altitude(s) did the aircraft first encounter turbulence? A. unknown B. 3,500-7,500 feet C. 5,000 feet D. 12,000 feet |
C. 5,000
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OKC UA /OV OKC180010/TM 1516/FL120/TP TA20/SK 035 BKN 075/OVC095-TOPUNKN/WX FV01SM SN/TA M04/TB MOD 050-070/RM TCU W DURC 373. What is the type of aircraft that made this report? A. FV01 B. TA20 C. TA04 D. TM1516 |
B. TA20
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OKC UA /OV OKC180010/TM 1516/FL120/TP TA20/SK 035 BKN 075/OVC095-TOPUNKN/WX FV01SM SN/TA M04/TB MOD 050-070/RM TCU W DURC 374. What is the height of the base of the second layer? A. Not reported B. 3,500 feet C. 7,500 feet D. 9,500 feet |
D. 9,500 Feet
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OKC UA /OV OKC180010/TM 1516/FL120/TP TA20/SK 035 BKN 075/OVC095-TOPUNKN/WX FV01SM SN/TA M04/TB MOD 050-070/RM TCU W DURC 375. What was the weather element that caused the reduction in visibility? A. RN B. SHRA C. SN D. GR |
C. SN
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After departing OKC at 0455Z, SWA5325, B737-700, 20 miles northwest of OKC climbing through 15,300 feet, reported bases 2,700, still IMC. Light turbulence was reported during the climb from 1,500 to 3,000, negative ice, wind 310 at 28 376. Record the intensity of the turbulence and the altitude at which it was first encountered? A. LGT/15 B. LGT 1.5 C. LGT 150 D. LGT 015 |
D. LGT 015
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After departing OKC at 0455Z, SWA5325, B737-700, 20 miles northwest of OKC climbing through 15,300 feet, reported bases 2,700, still IMC. Light turbulence was reported during the climb from 1,500 to 3,000, negative ice, wind 310 at 28 377. What should be recorded in the remarks? A. WND 31028KT B. NEG ICE C. DURC D. OKC315020 |
C. DURC
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534. A report of meteorological conditions encountered by aircraft in flight is known as a/an . A. AIRMET B. PIREP C. SIGMET D. Surface Observation |
B. PIREP
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535. Which is not a reportable intensity of icing? A. Trace B. Light C. Moderate D. Heavy |
D. Heavy
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548. Air Traffic Facilities are required to solicit PIREPs when is reported or forecasted. A. Ceiling at or below 7,000 feet B. Light icing C. Light turbulence D. Visibility at or below 10 miles |
B. Light Icing
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561. Each PIREP reporting turbulence must include the . A. turbulence intensity B. remarks C. sky conditions D. temperature |
A. turbulence intensity
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600. The message type “UUA” indicates that the PIREP falls under what classification? A. Routine PIREP B. Urgent Surface Observation C. Urgent PIREP D. Routine Surface Observation |
C. Urgent PIREP
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601. Each PIREP must include the altitude, location, time, and _. A. aircraft type B. remarks C. sky conditions D. temperature |
A. aircraft type
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653. Based on the following PIREP, the base of the second cloud layer is . UA/OV KMRB-KPIT/TM 1600/FL100/TP BE55/SK BKN024-TOP032/BKN-OVC043- TOPUNKN/TA M12/IC LGT-MOD RIME 055-080 A. 4,300 feet MSL B. 3,200 feel AGL C. 4,300 feet AGL D. 2,400 feet MSL |
A. 4,300 feet MSL
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692. Air Traffic Facilities are required to solicit PIREPs when is reported or forecasted. A. Ceiling at or below 7,000 feet B. Light icing C. Light turbulence D. Visibility at or below 10 miles |
B. light icing
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337. What National Weather Service office provides meteorological forecasts, and advice to ARTCCs and other FAA facilities regarding weather impact on their missions? A. Center Weather Service Unit (CWSU) B. Weather Forecast Office (WFO) C. Meteorological Watch Office (MWO) D. Aviation Weather Center (AWC) |
A. Center Weather Service Unit (CWSU)
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338. Within which layer of the atmosphere does temperature increase with altitude, making it a stable layer, generally devoid of significant weather? A. Tropopause B. Troposphere C. Stratosphere D. Mesosphere |
C. Stratosphere
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339. Precipitation formation requires water vapor, lift, and . A. a growth process B. frontal pressure C. a stable temperature D. a steep pressure gradient |
A. a growth process
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340. What type of air mass produces stable air that is associated with smooth air, poor visibility, and stratiform clouds? A. A warm air mass moving over a cold surface B. A cold air mass moving over a warm surface C. Any warm air mass D. Any cold air mass |
A. A warm air mass moving over a cold surface
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341. Which gas constitutes only a small percentage of the earth’s atmosphere and varies widely in both time and space, ranging from trace amounts to 4 percent by volume? A. Oxygen B. Carbon Monoxide C. Carbon Dioxide D. Water vapor |
D. Water Vapor
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342. Virtually all aircraft fly in which two layers of the atmosphere? A. Mesosphere and stratosphere B. Troposphere and mesosphere C. Thermosphere and stratosphere D. Troposphere and stratosphere |
D. Troposphere and stratosphere
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343. When the is greater than zero, the air is unsaturated. A. condensation point B. temperature-dew point spread C. temperature D. dew point |
B. temperature-dew point spread
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344. A sinking parcel of air compresses and ___ as it encounters increasing pressure; this causes a cloud to quickly ____. A. warms, form B. warms, dissipate C. cools, form D. cools, dissipate |
B. warms, dissipate
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345. What type of clouds look like fluffy cotton balls or heaps, indicate upward vertical motion or thermal uplift of air, and can produce severe turbulence, icing, and other hazards? A. Cirriform B. Nimboform C. Cumuliform D. Stratiform |
C. Cumuliform
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346. Air flow around a high diverges in a ____motion and , causing the air to compress and warm, which tends to dissipate clouds. A. clockwise, rises B. clockwise, sinks C. counterclockwise, rises D. counterclockwise, sinks |
B. clockwise, sinks
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347. Standard atmosphere is NOT used for . A. pressure altimeter calibrations B. aircraft performance calculations C. weather observations D. aircraft design |
C. weather observations
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348. The ratio of water vapor in the air compared to the amount of water vapor the air can hold at a particular temperature and pressure is the definition of . A. barometric surface pressure B. relative humidity C. dew point D. saturated air |
B. relative humidity
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349. Which front is associated with poor visibility, smooth air, and steady precipitation? A. Warm B. Occluded C. Cold D. Stationary |
A. warm
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350. What type of precipitation occurs when there is a shallow layer aloft with above freezing temperatures, with a deep layer of below freezing air based at the surface? A. Rain B. Snow C. Ice pellets D. Freezing rain |
C. Ice pellets
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525. When a parcel of air has all the water vapor it can hold, it is .
A. evaporated B. unsaturated C. saturated D. condensed |
C. Saturated
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526. A warm, moist air mass moving over a ____surface often produces ______, poor visibility, stratiform clouds, fog, and drizzle. A. warm, turbulence B. warm, smooth air C. cold, turbulence D. cold, smooth air |
D. cold, smooth air
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527. What type of precipitation occurs when the temperature remains below freezing throughout the entire depth of the atmosphere? A. Ice B. Snow C. Ice pellets D. Freezing rain |
B. Snow
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538. The average vertical depth of this layer of the atmosphere is 36,000 feet, but varies from about 65,000 feet at the equator to 20,000 feet at the poles. A. Troposphere B. Tropopause C. Stratosphere D. Mesosphere |
A. Troposphere
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539. What cloud type indicates thermal lift of air, and whose tops can reach over 60,000 feet? A. Cirriform B. Nimboform C. Cumuliform D. Stratiform |
C. Cumuliform
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540. Which front moves in such a way that colder air replaces warmer air? A. Clouded front B. Warm front C. Cold front D. Stationary front |
C. Cold front
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551. At what rate does temperature decrease with height (lapse rate) in the standard atmosphere? A. 1°c/1,000 feet B. 2°c/1,000 feet C. 4°c/1,000 feet D. 8°c/1,000 feet |
B. 2°c/1,000 feet
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552. Which statement about a pressure system and cloud creation is TRUE? A. Air in a high pressure system will rise, cool, and create clouds B. Air in a low pressure system will rise, cool, and create clouds C. Air in a high pressure system will descend, warm, and create clouds D. Air in a low pressure system will descend, warm, and dissipate clouds |
B. Air in a low pressure system will rise, cool, and create clouds
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553. The three necessary ingredients for precipitation formation are ____ ,____ and ______. A. water vapor, lift, a growth process B. evaporation, saturation, condensation C. condensation, compression, cold air D. dew point, compression, warm air |
A. water vapor, lift, a growth process
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594. What cloud type indicates thermal lift of air, and whose tops can reach over 60,000 feet? A. Cirriform B. Nimboform C. Cumuliform D. Stratiform |
C. Cumuliform
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595. What National Weather Service office provides meteorological forecasts, and advice to ARTCCs and other FAA facilities regarding weather impact on their missions? A. Center Weather Service Unit (CWSU) B. Weather Forecast Office (WFO) C. Meteorological Watch Office (MWO) D. Aviation Weather Center (AWC) |
A. Center Weather Service Unit (CWSU)
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646. The temperature to which air must be cooled at constant pressure and constant water vapor content in order for saturation to occur is . A. Relative humidity B. dew point C. lapse rate D. inversion |
B. dew point
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647. What type of precipitation occurs when the temperature remains below freezing throughout the entire depth of the atmosphere? A. Ice B. Snow C. Ice pellets D. Freezing rain |
B. Snow
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686. Precipitation formation requires water vapor, lift, and . A. a growth process B. frontal pressure C. a stable temperature D. a steep slope |
A. a growth process
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150. Which of the following is a characteristic of a temperature inversion? A. They cannot form along frontal zones B. Decreased temperatures with increased altitude C. Increased temperatures with increased altitude D. They never occur at or near the surface of the earth |
C. . Increased temperatures with increased altitude
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151. When de-icing or anti-icing equipment fails to reduce or control the icing hazard, the icing is categorized as. A. extreme B. severe C. moderate D. heavy |
B. severe
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152. A sudden wind shift, even at low speeds, can be hazardous on takeoff and landing because it can A. cause engine failure B. cause wing failure C. cause the plane to bounce on the runway D. quickly become a crosswind or tailwind |
D. quickly become a crosswind or tailwind
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153. Which airplane would be most at risk from a 25-knot crosswind on landing? A. General aviation, single propeller B. Corporate business jet C. Commercial jetliner D. Military cargo transport |
A. general aviation, single propeller
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154. Water vapor, lift, and unstable air are necessary for the formation of . A. a thunderstorm cell B. wind shear C. icing D. hail |
A. a thunderstorm cell
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155. Low-level wind shear is a change in windspeed of_______ knots or more within_______ feet AGL. A. 25; 1,000 B. 10; 2,000 C. 25; 2,000 D. 10; 1,000 |
B. 10; 2000
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156. Airplane performance gradually degrades as the wind _. A. turns perpendicular to the runway B. decreases suddenly C. passes over a mountain range D. is trapped in a valley |
A. turns perpendicular to the runway
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157. Severe damage can occur if is ingested into an engine. A. snow B. volcanic ash C. smoke D. mist |
B. volcanic ash
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158. An area as large as 10 miles or more of strong damaging winds reaching speeds as high as 120 knots, on or near the ground, is a . A. wind shear B. microburst C. downburst D. funnel cloud |
C. downburst
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159. Which stage of a thunderstorm is characterized by updrafts exceeding 3,000 feet per minute? A. Towering cumulus B. Mature C. Virga D. Dissipating |
A. Towering cumulus
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160. What type of turbulence is caused by any obstruction to the wind, such as buildings or mountains? A. Physical B. Mechanical C. Convective D. Clear air |
B. Mechanical
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161. What type of turbulence causes occupants to be forced violently against seat belts or shoulder straps, unsecured objects to be tossed about, and makes food service and walking impossible? A. Light B. Moderate C. Severe D. Trace |
C. Severe
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162. Which effect occurs to airplanes on departure during a high density altitude condition? A. A slower rate of climb. B. A shorter takeoff roll is required. C. A higher rate of climb. D. An increase in thrust. |
A. a slower rate of climb
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163. Which of the following is NOT true regarding fog? A. Fog reduces horizontal visibility to less than 5/8 SM B. Fog forms slowly, allowing pilots to avoid this hazard C. Fog forms when the temperature and dewpoint spread is at or near zero D. Fog is a cloud with it’s base at the earth’s surface. |
B. Fog forms slowly, allowing pilots to avoid this hazard
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164. Light turboprop aircraft are more susceptible to icing than commercial jet aircraft because they typically fly A. during the daytime B. at higher speeds C. at higher altitudes D. at lower altitudes |
D. at lower altitudes
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528. Which effect will an airplane experience when taking off with a tailwind? A. A longer take off roll is required. B. A shorter take off roll is required. C. A larger initial rate of climb occurs. D. It will drift off the side of the runway. |
A. A longer take off roll is required
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529. Ice becomes perceptible. Rate of accumulation is slightly greater than sublimation. Deicing/anti-icing equipment is NOT utilized unless encountered for an extended period of time (over 1 hour). What type of ice is being described? A. Trace B. Light C. Moderate D. Mixed |
A. Trace
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542. IFR weather is primarily a hazard ______. A. during takeoff and landing B. en route C. while in a holding pattern D. while changing altitudes |
A. during takeoff and landing
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543. What can produce almost every weather hazard? A. Hurricane B. Thunderstorm C. Tornado D. Turbulence |
B. Thunderstorm
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554. Which condition is responsible for the most weather-related aviation accidents? A. Adverse wind B. Instrument (IFR) weather C. Turbulence D. Thunderstorms |
A. Adverse Wind
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555. Turbulence that causes large, abrupt changes in altitude and/or attitude describes turbulence. A. moderate B. severe C. light D. trace |
B. severe
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596. Which of the following is NOT true regarding fog? A. Fog reduces horizontal visibility to less than5/8 SM B. Fog forms slowly, allowing pilots to avoid this hazard C. Fog forms when the temperature and dewpoint spread is at or near zero D. Fog is a cloud with it’s base at the earth’s surface. |
B. Fog forms slowly, allowing pilots to avoid this hazard
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648. The dissipating stage of a thunderstorm begins when are predominant. A. downdrafts B. updrafts C. hail stones D. icing |
A. downdrafts
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649. “Any wind more than 90 degrees to the longitudinal axis of the runway” defines a . A. tailwind B. crosswind C. variable wind D. sudden wind shift |
A. tailwind
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687. Turbulence that causes large, abrupt changes in altitude and/or attitude describes turbulence. A. moderate B. severe C. intense D. extreme |
B. severe
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688. What can produce almost every weather hazard? A. Hurricane B. Thunderstorm C. Tornado D. Turbulence |
B. Thunderstorm
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689. Which of the following is a characteristic of a temperature inversion? A. High winds B. Decreased temperatures with increased altitude C. Increased temperatures with increased altitude D. Clear air turbulence |
C. Increased temperatures with increased altitude
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