Index - Atpl Campus

100 item has been found

1-What is the meaning of "RERA" in a METAR?

050 14960 Meteorological Information

It is presently not raining, but there has been rain 2 hours ago. The intensity of rain is decreasing (Retrograding Rain). There has been moderate or heavy rain since the last issue of METAR. There is showery precipitation in the vicinity.

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2-What does RERA indicate?

050 1

A currect weather phenomena: rain given in the METAR at that time Freezing rain A previous weather phenomena: moderate rain at the aerodrome Rain

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3-What is the meaning of the expression "FEW"?

050 10947 Meteorological Information

3 - 4 oktas. 8 oktas. 1 - 2 oktas. 5 - 7 oktas.

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4-What is the meaning of the abbreviation "SCT" ?

050 1776 Meteorological Information

3 - 4 oktas 5 - 7 oktas 1 - 4 oktas 1 - 2 oktas

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5-What is the meaning of the abbreviation "SCT"?

050 1

5 - 7 octas. 6 - 8 octas. 8 octas 3 - 4 octas.

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6-What is the meaning of the abbreviation "BKN"?

050 1

1 - 2 octas. 6 - 8 octas. 5 - 7 octas. 3 - 4 octas.

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7-What is the meaning of PROB30?

050 1

30 kt At 3000 ft with a probablity of 30% visibility is 30m

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8-What does the term METAR signify?

050 1998 Meteorological Information

A METAR signifies the actual weather report at an aerodrome and is generally issued in half-hourly intervals. A METAR is a landing forecast added to the actual weather report as a brief prognostic report. A METAR is a warning of dangerous meteorological conditions within a FIR. A METAR is a flight forecast, issued by the meteorological station several times daily.

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9-What is the wind speed given in a METAR report based on?

050 2528 Meteorological Information

The average speed of the previous 10 minutes The strongest gust in the previous hour The actual speed at the time of recording The average speed of the previous 30 minutes

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10-What would you expect when you see FZRA in a METAR?

050 1

Freezing fog Ice pellets Rain showers Formation of ice due to supercooled precipitation

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11-What is the meaning of the different coloured areas on a plan position indicator of an airborne weather radar?

050 15829 Meteorological Information

Different intensities of turbulence (light, moderate, severe) within clouds Different ranges of cloud thickness (vertical extent) Different horizontal dimensions of clouds Different ranges of intensities of precipitation

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12-What is the meaning of the following weather message?
… CNL WS WRNG 1 211130/211330=

050 16819 Meteorological Information

The first wind shear warning on the 21st of that month, issued at 1130 UTC has been cancelled at the same day at 1330 UTC. This message cancels all weather warnings issued on the 21st of January between 1130 and 1330 UTC. The first wind shear warning on the 21st of that month with an occasional intensity has a forecast validity from 1130 until 1330 UTC. The weather warning with the number 121 concerning a cyclone at low levels has a validity time from 1130 until 1330 UTC.

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13-You receive the following METAR: LSGG 120750Z 00000KT 0300 R05/0700N FG VV001 M02/M02 Q1014 NOSIG = What will be the RVR at 0900 UTC?

050 1569 Meteorological Information

The RVR is unknown, because the "NOSIG" does not refer to RVR. 900 m. 300 m. 700 m.

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14-If Paris reports a wind of 30012KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground ?

050 2537 Wind

27020KT 30025KT 33025KT 23030KT

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15-If Paris reports a wind of 16020KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground?

050 2536 Wind

17015KT 16030KT 19040KT 14020KT

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16-If Paris reports a wind of 08010KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground ?

050 2535 Wind

11020KT 08005KT 08015KT 05020KT

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17-If Paris reports a wind of 19015KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground ?

050 2534 Wind

16020KT 22010KT 25025KT 22030KT

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18-In the METAR shown below, the cloud base has been omitted. At what height might you expect the cloud base to be if cumulus cloud was present? 28005KT 9999 SCT??? 12/05 Q1020 NOSIG =

050 1

SCT095 SCT082 SCT280 SCT028

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19-A METAR message is valid

050 10846 Meteorological Information

at the time of observation for 2 hours for 9 hours for the hour following the observation

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20-The RVR, as reported in a METAR, is always the

050 4187 Meteorological Information

lowest value of the A-, B- and C-position value representative of the touchdown zone highest value of the A-, B- and C-position average value of the A-, B- and C-position

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21-A METAR may be defined as being?

050 1

A forecast weather report concerning a specific aerodrome. An aerodrome forecast containing a TREND for the next two hours. A routine weather report for a large area. A routine weather report concerning a specific aerodrome.

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22-In a METAR a gust is reported when:

050 1

it is 5 kt greater than the mean wind speed. it is 20 kt greater than the mean wind speed. it is 10 kt greater than the mean wind speed. it is 15 kt greater than the mean wind speed.

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23-In the METAR code the abbreviation VC indicates:

050 13646 Wind Uncategorized

present weather within the approach area. present weather at the airport. volcanic ash. present weather within a range of 8 km, but not at the airport.

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24-In the METAR code the abbreviation VCBLDU means:

050 13647 Meteorological Information

an active dust- and sandstorm. blowing dust in the vicinity. an active duststorm. an active sandstorm.

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25-In METAR messages, the pressure group represents the

050 1769 Meteorological Information

QFE rounded to the nearest hPa. QNH rounded down to the nearest hPa. QFE rounded down to the nearest hPa. QNH rounded up to the nearest hPa.

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26-The wind direction in a METAR is measured relative to

050 4184 Meteorological Information

the 0-meridian grid north true north magnetic north

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27-A temperature group of 28/24 in a METAR means that:

050 1

the dew point is 28°C and the temperature is 24°C. the temperature is 28°C at the time of the reporting, but is expected to become 24°C by the end of the TREND report. the dry bulb temperature is 28°C and the wet bulb temperature is 24°C. the temperature is 28°C and the dew point is 24°C.

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28-The visibility group R20/0050 in a METAR means:

050 1

the runway visibility reported is 50 meters as measured by the runway visual range equipment within the last 20 minutes. on Runway 20, the current visibility is less than 5000 meters. for Runway 20, a current visibility of 500 meters measured by runway visual range equipment. as measured by runway measuring equipment for Runway 20, a current runway visibility of 50 meters.

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29-In a METAR message, the wind group is 23010MPS. This means:

050 10905 Meteorological Information

Wind from 230° magnetic at 10 miles per hour Wind from 230° true at 10 miles per hour Wind from 230° magnetic at 20 knots Wind from 230° true at 20 knots

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30-In a METAR message, BR and HZ mean respectively:

050 10891 Meteorological Information

BR = mist HZ = haze BR = mist HZ = smoke BR = mist HZ = widespread dust BR = fog HZ = haze

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31-The cloud base, reported in the METAR, is the height above

050 4188 Meteorological Information

mean sea level airfield level the highest terrain within a radius of 8 km from the observation station the pressure altitude of the observation station at the time of observation

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32-When will the surface wind in a METAR record a gust factor ?

050 2566 Meteorological Information

When gusts are at least 10 knots above the mean wind speed With gusts of at least 35 knots When gusts are at least 15 knots above the mean wind speed With gusts of at least 25 knots

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33-When will the surface wind in a METAR record a gust factor ?

050 1

When gusts are at least 10 knots above the mean wind speed With gusts of at least 25 knots When gusts are at least 15 knots above the mean wind speed With gusts of at least 35 knots

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34-In Zurich during a summer day the following weather observations were taken: 160450Z 23015KT 3000 +RA SCT008 SCT020 OVC030 13/12 Q1010 NOSIG = 160650Z 25008KT 6000 SCT040 BKN090 18/14 Q1010 RERA NOSIG = 160850Z 25006KT 8000 SCT040 SCT100 19/15 Q1009 NOSIG 161050Z 24008KT 9999 SCT040 SCT100 21/15 Q1008 NOSIG =
161250Z 23012KT CAVOK 23/16 Q1005 NOSIG = 161450Z 23016KT 9999 SCT040 BKN090 24/17 Q1003 BECMG 25020G40KT TS =161650Z 24018G35KT 3000 +TSRA SCT006 BKN015CB 18/16 Q1002 NOSIG = 161850Z 28012KT 9999 SCT030 SCT100 13/11 Q1005 NOSIG = What do you conclude based on these observations?

050 2708 Meteorological Information

A cold front passed the station early in the morning and a warm front during late afternoon A warm front passed the station early in the morning and a cold front during late afternoon Storm clouds due to warm air came close to and grazed the station A trough line passed the station early in the morning and a warm front during late afternoon

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35-Which of these four METAR reports suggests that a thunderstorm is likely in the next few hours?

050 13817 Wind Uncategorized

201350Z 16004KT 8000 SCT110 OVC220 02/M02 Q1008 NOSIG = 201350Z 04012KT 3000 BR OVC012 04/03 Q1022 BECMG 6000 = 201350Z 21005KT 9999 SCT040CB SCT100 26/18 Q1016 TEMPO 24018G30KT TS = 201350Z 34003KT 0800 SN VV002 M02/M04 Q1014 NOSIG =

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36-In which of the following METAR reports is the probability of fog formation in the coming night the highest?

050 13693 Meteorological Information

201850Z 25010KT 4000 RA BKN012 OVC030 12/10 Q1006 TEMPO 1500= 201850Z 06018G30KT 5000 -RA OVC010 04/01 Q1024 NOSIG= 201850Z 15003KT 6000 SCT120 05/04 Q1032 BECMG 1600 BR= 201850Z 21003KT 8000 SCT250 12/m08 Q1028 NOSIG=

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37-How would the term "vertical visibility is missing or not measurable" be indicated in a METAR?

050 15053 Meteorological Information

VV999 VVmis VV000 VV///

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38-How long from the time of observation is a TREND in a METAR valid?

050 1999 Meteorological Information

2 hours. 30 minutes. 9 hours. 1 hour.

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39-Which of these four METAR reports suggests that a thunderstorm is likely in the next few hours?

050 2596 Uncategorized Wind

201350Z 21005KT 9999 SCT040CB SCT100 26/18 Q1016 TEMPO 24018G30KT TS = 201350Z 34003KT 0800 SN VV002 M02/M04 Q1014 NOSIG = 201350Z 04012KT 3000 BR OVC012 04/03 Q1022 BECMG 6000 = 201350Z 16004KT 8000 SCT110 OVC220 02/M02 Q1008 NOSIG =

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40-In which of the following METAR reports is the probability of fog formation in the coming night the highest?

050 2597 Meteorological Information

201850Z 15003KT 6000 SCT120 05/04 Q1032 BECMG 1600 BR= 201850Z 25010KT 4000 RA BKN012 OVC030 12/10 Q1006 TEMPO 1500= 201850Z 06018G30KT 5000 -RA OVC010 04/01 Q1024 NOSIG= 201850Z 21003KT 8000 SCT250 12/m08 Q1028 NOSIG=

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41-In which of the following METAR is the probability the biggest for the formation of fog the following night?

050 1

1850Z 15003KT 6000 SCT120 05/04 Q1032 BECMG 1600 = 1850Z 25010KT 4000 RA BKN012 OBC030 12/10 Q1006 TEMPO 1500 = 1850Z 21003KT 8000 SCT250 12/M08 Q1028 NOSIG = 1850Z 06018G30KT 5000 OVC010 04/01 Q1024 NOSIG =

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42-When a TREND is included at the end of a METAR, the trend is a forecast valid for:

050 1

1 hour after the time of observation. 2 hours after the time of observation 2 hours after it was issued. 1 hour after it was issued.

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43-How long from the time of observation is a TREND in a METAR valid?

050 1

1 hour. 2 hours. 30 minutes. 9 hours.

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44-The code: BECMG FM 1100 -SHRA when used in a METAR means:

050 1

From 1100 UTC the cessation of rain showers. Becoming fairly moderate weather from 1100 UTC. From 1100 UTC the prevailing rain showers becoming slight. Becoming from 1100 UTC slight rain showers.

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45-Providing the minimum sector altitude is not a determining factor, CAVOK in a TAF or METAR:

050 1

Means visibility 10 nm or more. Means visibility 10 nm or more and no cloud below 5000ft. Means visibility 10 km or more and no cloud below 5000ft. Means visibility 10 km or more with only few cloud below 5000ft.

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46-What is a downburst?

050 10941 Flight Hazards

An extremely strong wind gust in a tropical revolving storm. A concentrated downdraft with high speeds and a lower temperature than the surrounding air. A small low pressure system where the wind circulates with very high speeds. A concentrated downdraft with high speeds and a higher temperature than the surrounding air.

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47-What is a radiosonde?

050 15878 Meteorological Information

A meteorological station on ground or water at which measurements of meteorological variables are made automatically and a radio transmitter sends automatically this information to a meteorological centre. These data from such a station are indicated in a Equipment used for determining upper winds only (velocity and direction) by tracking a free balloon by electronic means at the observing station. Equipment used for determining upper winds (velocity and direction) by transmitting different radio waves and measuring the amount of the reflected waves by the moving air. These values correlate to the speed and direction of the wind. Instrument intended to be carried by a balloon up through the atmosphere, equipped with devices to measure meteorological variables and provided with a radio transmitter for sending this information to the observing station.

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48-What is a stormscope?

050 15654 Flight Hazards

The technical term (jargon) for a radar scope showing thunderstorms. An instrument to measure wind velocity. An instrument on board an aircraft to detect electrical discharges. An instrument to detect wind shear by means of the Doppler-effect during flight.

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49-What is a SPECI?

050 2003 Meteorological Information

An aerodrome forecast issued every 9 hours. A routine aerodrome weather report issued every 3 hours. A special aerodrome weather report, issued when a significant change of the weather conditions have been observed. A warning of meteorological dangers at an aerodrome, issued only when required.

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50-What is sublimation?

050 1

The change of state from ice to water vapor or from water vapor to ice The change of state from ice to water The change of state from water to water vapor The change of state from water vapor to water

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51-What is meteorology?

050 1

The science of weather–related phenomena the study of clouds the science of meteroids The science of relative humidity

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52-What is evaporation?

050 1

The change of state from ice to water vapor or from water vapor to ice The change of state from water to water vapor The change of state from ice to water The change of state from water vapor to water

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53-What is divergence?

050 1

Air moving in Air moving out Descending air. Ascending air

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54-What is condensation?

050 1

The change of state from water to water vapor The change of state from ice to water vapor or from water vapor to ice The change of state from ice to water The change of state from water vapor to water

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55-What is convergence?

050 1

Air moving in Descending air. Air moving out Ascending air

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56-For 1300 UTC select a METAR which you consider to be most appropriate to position "T".

050 13579 Meteorological Information

18015KT 9999 SCT020 03/01 Q1000= 24020KT 5000 RA BKN100 11/10 Q1002= 27030KT 8000 SCT020 07/03 Q1004= 19010KT 6000 RA BKN016 OVC090 08/06 Q1004=

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57-Which of the following statements is an interpretation of the METAR ? 00000KT 0200 R14/0800U R16/P1500U FZFG VV001 m03/m03 Q1022 BECMG 0800 =

050 13797 Uncategorized Wind

Visibility 200 feet, RVR for runway 16 more than 1500 metres, vertical visibility 100 feet, fog with hoar frost Visibility 200 metres, RVR for runway 16 1500 metres, temperature -3°C, vertical visibility 100 metres Visibility for runway 14 800 metres, fog with hoar frost, RVR for runway 16 more than 1500 metres RVR for runway 14 800 metres, vertical visibility 100 feet, calm, visibility improving to 800 metres in the next 2 hours

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58-In which of the following 1850 UTC METAR reports, is the probability of fog formation, in the coming night, the highest?

050 1625 Meteorological Information

00000KT 9999 SCT300 21/01 Q1032 NOSIG = VRB01KT 8000 SCT250 11/10 Q1028 BECMG 3000 BR = 22004KT 6000 -RA SCT012 OVC030 17/14 Q1009 NOSIG = VRB02KT 2500 HZ SCT120 14/M08 Q1035 NOSIG =

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59-Does the following report make sense? METAR LSZH 182320Z VRB02KT 5000 MIFG 02/02 Q1015 NOSIG

050 1568 Meteorological Information

The report is not possible, because, with a temperature of 2°C and a dew point of 2°C there must be uniform fog. The report would never be seen, because shallow fog is not reported when the visibility is more than 2 km. The report is possible, because shallow fog is defined as a thin layer of fog below eye level. The report is nonsense, because it is impossible to observe a visibility of 5 km if shallow fog is reported.

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60-Which of the following statements is an interpretation of the METAR ? 00000KT 0200 R14/0800U R16/P1500U FZFG VV001 m03/m03 Q1022 BECMG 0800 =

050 2603 Uncategorized Wind

Visibility 200 feet, RVR for runway 16 more than 1500 metres, vertical visibility 100 feet, fog with hoar frost RVR for runway 14 800 metres, vertical visibility 100 feet, calm, visibility improving to 800 metres in the next 2 hours Visibility for runway 14 800 metres, fog with hoar frost, RVR for runway 16 more than 1500 metres Visibility 200 metres, RVR for runway 16 1500 metres, temperature -3°C, vertical visibility 100 metres

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61-Which of the following statements is an interpretation of the METAR ? 25020G38KT 1200 +TSGR BKN006 BKN015CB 23/18 Q1016 BECMG NSW =

050 2602 Meteorological Information

Broken, cloud base 600 feet and 1500 feet, temperature 18°C Wind 250°, thunderstorm with moderate hail, QNH 1016 hPa Gusts of 38 knots, thunderstorm with heavy hail, dew point 18°C Mean wind speed 20-38 knots, visibility 1200 metres, temperature 23°C

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62-Which of these four METAR reports suggests that rain is most likely in the next few hours?

050 2595 Wind Uncategorized

05016G33KT 8000 OVC015 08/06 Q1028 NOSIG = 16002KT 0100 FG SCT300 06/06 Q1022 BECMG 1000 = 23015KT 8000 BKN030 OVC070 17/14 Q1009 BECMG 4000 = 34004KT 9999 SCT040 SCT100 m05/m08 Q1014 NOSIG =

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63-A METAR- EGZZ 130350Z 32005kt 0400N DZ 10/10 BCFG VV002- in plain language means:

050 1

Observed on the 13th day of the month and valid between 0300 and 0500Z, surface wind 320°/05kt, minimum visibility 4000 meters to the north, drizzle temperature+10°C, dew point + 10°C, becoming fog patches, vertical visibility 200ft. Observed on the 13th day of the month at 0350Z, surface wind 320°T/05kt, minimum visibility 400 meters to the north, moderate drizzle, temperature +10°C, dew point + 10 °C with fog patches, vertical visibility 200ft. Reported on the 13th day of the month and valid between 0300 and 0500Z, surface wind 320°/05kt, minimum visibility 400 meters to the north, drizzle temperature +10°C, becoming fog patches, vertical visibility 200ft. Reported on the 13th day of the month at 0350Z, surface wind 320°/05kt, minimum visibility 400metres to the north, drizzle, temperature +10°C dew point above 10 oc with fog patches, vertical visibility 200metres.

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64-Decode the cloud bases being described in this METAR for an aerodrome: 261450Z 07007KT 9999 FEW035 SCT043 BKN240 21/12 Q1016 NOSIG =

050 1

1-2 oktas at 3500 ft., 2-3 oktas at 4300 ft., 5-8 oktas at 24000 ft. 1-2 oktas at 3500 ft., 3-4 oktas at 4300 ft., 5-7 oktas at 24000 ft. 2-3 oktas at 3500 ft., 4-5 oktas at 4300 ft., 6-7 oktas at 24000 ft. 1-2 oktas at 350 ft., 3-4 oktas at 430 ft., 5-7 oktas at 2400 ft.

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65-According to the following 1850 UTC METAR reports, which has the highest probability of fog formation?

050 1

00000KT 9999 SCT300 21/01 Q1032 NOSIG = 22004KT 6000 -RA SCT012 OVC030 17/14 Q1009 NOSIG = VRB01KT 8000 SCT025 11/10 Q1028 BECMG 3000 = VRB02KT 2500 SCT120 14/M08 Q1035 NOSIG =

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66-NOSIG appearing at the end of the METAR below means: EGAC SA1720 161720Z 22009KT CAVOK 16111 Q1010 NOSIG=

050 1

No expected significant variation to the observed weather during the two hour forecast period following the time of observation. No significant weather at the time of observation. No significant changes to the forecast conditions during the period of validity of the forecast. Nothing significant in general for that day.

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67-Few 200 ft, Scattered 1200 ft, Broken 3500 ft, Overcast 10000 ft. How would that be reported in a METAR?

050 1

FEW002 SCT012 BKN035 OVC100 FEW002 SCT012 BKN035 OVC010 FEW020 SCT120 BKN350 OVC100 FEW002 SCT012 BKN035 OVC1000

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68-What is a characteristic of stable air?

050 13605 Wind Uncategorized

Stratiform clouds. Temperature decreases rapidly. Fair weather cumulus clouds. Unlimited visibility.

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69-What are the characteristics of the Bora ?

050 4258 Climatology

It is a very cold wind that blows mainly in winter from a north-westerly direction in the Mediterranean It is a dry and hot southerly wind experienced in the Sahara desert, that often carries dust. It is a cold and very strong wind that blows mainly in winter from a tableland downwards to the Adriatic It is a warm and moist, south-westerly wind experienced in the eastern Mediterranean, that usually carries precipitation.

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70-What is determined by a transmissometer?

050 15609 Meteorological Information

Height of cloud base. Vertical visibility. Visibility, runway visual range. Air density.

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71-What is "mixing ratio"?

050 16875 Thermodynamics

The ratio between actual water vapour content and saturated water vapour content. The volume of water vapour which is mixed with each volume unit of dry air. The percentage of water drops per volume unit of dry air. The number of grammes of water vapour per kilogramme of dry air.

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72-What is meant by QFE?

050 16768 The Atmosphere

The pressure at MSL in standard atmospheric conditions. The present atmospheric pressure at an aerodrome converted to mean sea level in accordance with the actual conditions. The atmospheric pressure at the official aerodrome elevation, reduced to mean sea level in standard atmospheric conditions. The atmospheric pressure at the official aerodrome elevation.

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73-What is a Foehn wind?

050 16396 Climatology

It is a warm and moist anabatic wind that usually carries precipitation. It is an adiabatically heated wind blowing down a mountain side. The temperature on the lee side is normally lower than on the windward side of the mountain at the same level. It is a flow of warm air up a slope of a hill caused by surface heating. It is an adiabatically heated wind blowing down a mountain side. The temperature on the lee side is normally higher than on the windward side of the mountain at the same level.

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74-What is an aerodrome warning ?

050 15552 Meteorological Information

The part of a METAR message that is called supplementary information. A message issued by a meteorological office concerning the meteorological conditions which could adversely affect aircraft on ground, including parked aircraft, and the aerodrome facilities and services. A message issued by a meteorological watch office concerning the occurrence and/or expected occurrence of specified en-route weather phenomena, which may affect the safety of aircraft operations. A message prepared by a meteorological office concerning wind shear which could adversely affect aircraft on the approach path or take-off path or during circling approach between runway level and a specified upper level, and aircraft on the runway during

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75-What is a VOLMET broadcast?

050 15060 Meteorological Information

Provision, as appropriate, of current METAR, SPECI, TAF and SIGMET by means of continuous and repetitive voice broadcast. Information issued by a meteorological watch office concerning the occurrence or expected occurrence of specified enroute weather phenomena which may affect the safety of aircraft operations. Weather information transmitted continuously via radio (special broadcast), containing weather information for one airport. That part of an ATIS which is concerned to meteorological information.

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76-What is meant by the term "altitude"?

050 14954 The Atmosphere

The vertical distance of a level or a point measured from the earth's surface. The vertical distance of a level or a point measured from mean sea level. The vertical distance of a level or a point measured from the aerodrome reference point. Altimeter indication when altimeter subscale is set to present QFE.

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77-What is a trend forecast?

050 1621 Meteorological Information

A routine report A route forecast valid for 24 hours A landing forecast appended to METAR/SPECI, valid for 2 hours An aerodrome forecast valid for 9 hours

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78-What is characteristic of the pamperos?

050 1608 Climatology

A marked advance of cold arctic air in North America A marked advance of cold air in South America Foehn conditions in the Spanish Pyrenees Katabatic winds in the Atlas Mountains

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79-What characterizes a stationary front ?

050 2131 Air Masses and Fronts

The warm air moves at approximately half the speed of the cold air The surface wind usually has its direction perpendicular to the front The weather conditions that it originates is a combination between those of an intense cold front and those of a warm and very active front The surface wind usually has its direction parallel to the front

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80-What pressure is defined as QFE?

050 1098 The Atmosphere

The pressure at field elevation The pressure reduced to sea level using ISA temperatures The pressure reduced to sea level using actual temperatures The pressure of the altimeter

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81-What does dewpoint mean?

050 1202 Thermodynamics

The temperature to which a mass of air must be cooled in order to reach saturation. The temperature at which ice melts. The temperature at which the relative humidity and saturation vapour pressure are the same. The freezing level (danger of icing).

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82-What are squall lines?

050 233 Flight Hazards

Bands of intensive thunderstorms. The paths of tropical revolving storms. The surface weather associated with upper air troughs. Unusual intensive cold fronts.

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83-What are the characteristics of cumuliform clouds?

050 1217 Clouds and Fog

Small water droplets, stability, no turbulence and extensive areas of rain. Small water droplets, instability, turbulence, extensive areas of rain and rime ice. Large water droplets, stability, no turbulence, showers and mainly rime ice. Large water droplets, instability, turbulence, showers and mainly clear ice.

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84-What is meant by QFF?

050 16883 The Atmosphere

The present atmospheric pressure at an aerodrome converted to mean sea level in accordance with the ICAO standard atmosphere. The pressure at mean sea level in standard atmospheric conditions. The present atmospheric pressure at an aerodrome converted to mean sea level in accordance with the actual conditions. The atmospheric pressure at the official aerodrome elevation.

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85-What are the requirements for the formation of a thunderstorm?

050 4115 Uncategorized Wind

Water vapour and high pressure An adequate supply of moisture, conditional instability and a lifting action A stratocumulus cloud with sufficient moisture A cumulus cloud with sufficient moisture associated with an inversion

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86-What does RVR stand for ?

050 1

Reduced visibility range. Runway visual range. Reduced vertical range. Radio VHF and range

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87-What is the cause of wind?

050 1

jetstreams decrease in pressure with altitude horizontal pressure differences environmental lapse rate

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88-What does a Transmissiometer measure ?

050 1

Cloud base. Wind speed. Visibility. Breaking action

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89-What is density defined as?

050 1

Volume divided by mass. Weight of air per unit area. Mass per unit volume. Mass per unit area.

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90-What are the proportions of gases in the atmosphere?

050 1

Nitrogen 78%, Oxygen 21%, Hydrogen 1%. Oxygen 21%, Hydrogen 78%, other gasses 1%. Nitrogen 78%, Argon 21%, Oxygen 1%. Oxygen 21%, Nitrogen 78%, other gasses 1%.

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91-What is a characteristic of the troposphere?

050 1

There is an overall decrease of temperature with an increase of altitude The average altitude of the top of the troposphere is about 8 kilometres There is an overall increase of temperature with an increase of altitude It contains all the moisture of the atmosphere

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92-What is dynamic pressure?

050 1

Pressure caused by movement. Centrifugal force Turbulence. Acceleration force.

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93-Given the following METAR: EDDM 250850Z 33005KT 2000 R26R/P1500N R26L/1500N BR SCT002 OVC003 05/05 Q1025 NOSIG Which of the following statements is correct ?

050 4196 Meteorological Information

There is a distinct change in RVR observed Runway 26R and runway 26L have the same RVR RVR on runway 26R is increasing Visibility is reduced by water droplets

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94-Which of the following statements is an interpretation of the METAR? LTXX 010120Z 00000KT 0200 R14/0800 R16/P1500 FZFG VV001 M03/M03 Q1022 BECMG 0800 =

050 1

Meteorological visibility 200 metres, RVR for runway 16 1500 metres, temperature -3°C, vertical visibility 100 metres RVR for runway 14 is 800 metres, vertical visibility 100 feet, calm, meteorological visibility improving to 800 metres in the next 2 hours Meteorological visibility for runway 14 800 metres, fog with hoar frost, RVR for runway 16 more than1500 metres Meteorological visibility 200 feet, RVR for runway 16 more than 1500 metres, vertical visibility 100 feet, fog with hoar frost

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95-What are the characteristics of rime ice, and what conditions are most favourable for its formation?

050 13600 Flight Hazards

Opaque rough appearance, tending to spread back over an aircraft surface. Most frequently encountered in cumuliform clouds at temperatures slightly below freezing. Transparent appearance and tendency to take the shape of the surface on which it freezes. Stratiform clouds and temperatures only slightly below freezing promote its formation. Milky granular appearance, forming on leading edges and accumulating forward into the air stream. Stratiform clouds at temperatures of -10°C to -20°C are most conducive to its formation. Smooth appearance and builds forward from leading surfaces into a sharp edge. Most common in cumuliform clouds at temperatures of -20°C to -25°C.

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96-What are the characteristics of rime ice, and what conditions are most favourable for its formation?

050 16547 Flight Hazards

Milky granular appearance, forming on leading edges and accumulating forward into the air stream. Stratiform clouds at temperatures of -10°C to -20°C are most conducive to its formation. Opaque rough appearance, tending to spread back over an aircraft surface. Most frequently encountered in cumuliform clouds at temperatures slightly below freezing. Transparent appearance and tendency to take the shape of the surface on which it freezes. Stratiform clouds and temperatures only slightly below freezing promote its formation. Smooth appearance and builds forward from leading surfaces into a sharp edge. Most common in cumuliform clouds at temperatures of -20°C to -25°C.

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97-What is the dry adiabatic lapse rate ?

050 12860 Thermodynamics

1.5°C/1000 FT 3.0°C/1000 FT 3.5°C/1000 FT 2.0°C/1000 FT

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98-What is a characteristic phenomenon for a stable atmosphere?

050 13631 Clouds and Fog

Many vertical currents. No precipitation. Weak wind. Stratified clouds.

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99-What does the code R24R/P1500 mean?

050 13598 Meteorological Information

RVR RWY 24 right 1500 metres. RVR RWY 24 right above 1500 metres. RVR RWY 24 right below 1500 metres. Snow clearance in progress on RWY 24 right, useable runway length 1500 metres.

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100-What is signified if an occlusion is described as "cold"?

050 10943 Air Masses and Fronts

The air ahead of the associated warm front is less cold than the air behind the associated cold front The air ahead of the associated warm front is colder than the air behind the associated cold front On meeting the warm front, the cold front moves up the warm frontal surface It derives from a polar depression

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1-What is the meaning of "RERA" in a METAR?

2-What does RERA indicate?

3-What is the meaning of the expression "FEW"?

4-What is the meaning of the abbreviation "SCT" ?

5-What is the meaning of the abbreviation "SCT"?

6-What is the meaning of the abbreviation "BKN"?

7-What is the meaning of PROB30?

8-What does the term METAR signify?

9-What is the wind speed given in a METAR report based on?

10-What would you expect when you see FZRA in a METAR?

11-What is the meaning of the different coloured areas on a plan position indicator of an airborne weather radar?

12-What is the meaning of the following weather message?… CNL WS WRNG 1 211130/211330=

13-You receive the following METAR: LSGG 120750Z 00000KT 0300 R05/0700N FG VV001 M02/M02 Q1014 NOSIG = What will be the RVR at 0900 UTC?

14-If Paris reports a wind of 30012KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground ?

15-If Paris reports a wind of 16020KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground?

16-If Paris reports a wind of 08010KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground ?

17-If Paris reports a wind of 19015KT on the METAR, what wind velocity would you expect to encounter at a height of 2000 feet above the ground ?

18-In the METAR shown below, the cloud base has been omitted. At what height might you expect the cloud base to be if cumulus cloud was present? 28005KT 9999 SCT??? 12/05 Q1020 NOSIG =

19-A METAR message is valid

20-The RVR, as reported in a METAR, is always the

21-A METAR may be defined as being?

22-In a METAR a gust is reported when:

23-In the METAR code the abbreviation VC indicates:

24-In the METAR code the abbreviation VCBLDU means:

25-In METAR messages, the pressure group represents the

26-The wind direction in a METAR is measured relative to

27-A temperature group of 28/24 in a METAR means that:

28-The visibility group R20/0050 in a METAR means:

29-In a METAR message, the wind group is 23010MPS. This means:

30-In a METAR message, BR and HZ mean respectively:

31-The cloud base, reported in the METAR, is the height above

32-When will the surface wind in a METAR record a gust factor ?

33-When will the surface wind in a METAR record a gust factor ?

35-Which of these four METAR reports suggests that a thunderstorm is likely in the next few hours?

36-In which of the following METAR reports is the probability of fog formation in the coming night the highest?

37-How would the term "vertical visibility is missing or not measurable" be indicated in a METAR?

38-How long from the time of observation is a TREND in a METAR valid?

39-Which of these four METAR reports suggests that a thunderstorm is likely in the next few hours?

40-In which of the following METAR reports is the probability of fog formation in the coming night the highest?

41-In which of the following METAR is the probability the biggest for the formation of fog the following night?

42-When a TREND is included at the end of a METAR, the trend is a forecast valid for:

43-How long from the time of observation is a TREND in a METAR valid?

44-The code: BECMG FM 1100 -SHRA when used in a METAR means:

45-Providing the minimum sector altitude is not a determining factor, CAVOK in a TAF or METAR:

46-What is a downburst?

47-What is a radiosonde?

48-What is a stormscope?

49-What is a SPECI?

50-What is sublimation?

51-What is meteorology?

52-What is evaporation?

53-What is divergence?

54-What is condensation?

55-What is convergence?

56-For 1300 UTC select a METAR which you consider to be most appropriate to position "T".

57-Which of the following statements is an interpretation of the METAR ? 00000KT 0200 R14/0800U R16/P1500U FZFG VV001 m03/m03 Q1022 BECMG 0800 =

58-In which of the following 1850 UTC METAR reports, is the probability of fog formation, in the coming night, the highest?

59-Does the following report make sense? METAR LSZH 182320Z VRB02KT 5000 MIFG 02/02 Q1015 NOSIG

60-Which of the following statements is an interpretation of the METAR ? 00000KT 0200 R14/0800U R16/P1500U FZFG VV001 m03/m03 Q1022 BECMG 0800 =

61-Which of the following statements is an interpretation of the METAR ? 25020G38KT 1200 +TSGR BKN006 BKN015CB 23/18 Q1016 BECMG NSW =

62-Which of these four METAR reports suggests that rain is most likely in the next few hours?

63-A METAR- EGZZ 130350Z 32005kt 0400N DZ 10/10 BCFG VV002- in plain language means:

64-Decode the cloud bases being described in this METAR for an aerodrome: 261450Z 07007KT 9999 FEW035 SCT043 BKN240 21/12 Q1016 NOSIG =

65-According to the following 1850 UTC METAR reports, which has the highest probability of fog formation?

66-NOSIG appearing at the end of the METAR below means: EGAC SA1720 161720Z 22009KT CAVOK 16111 Q1010 NOSIG=

67-Few 200 ft, Scattered 1200 ft, Broken 3500 ft, Overcast 10000 ft. How would that be reported in a METAR?

68-What is a characteristic of stable air?

69-What are the characteristics of the Bora ?

70-What is determined by a transmissometer?

71-What is "mixing ratio"?

72-What is meant by QFE?

73-What is a Foehn wind?

74-What is an aerodrome warning ?

75-What is a VOLMET broadcast?

76-What is meant by the term "altitude"?

77-What is a trend forecast?

78-What is characteristic of the pamperos?

79-What characterizes a stationary front ?

12-What is the meaning of the following weather message?
… CNL WS WRNG 1 211130/211330=