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MET-BNC-MODULE8
1.
Which of the following cloud types is least likely to produce precipitation ?
a) CB
b) AS
c) NS
d) CI
2.
With what type of cloud is heavy precipitation unlikely during the summer months ?
a) CB, ST
b) SC, AS
c) NS, CC
d) AS, NS
3.
With what type of cloud is "+TSRA" precipitation most commonly associated?
a) SC
b) NS
c) CB
d) AS
4.
Read this description: "After such a fine day, the ring around the moon was a bad sign yesterday evening for the weather today. And, sure enough, it is pouring down outside. The clouds are making an oppressively low ceiling of uniform grey; but at least it has become a little bit warmer." Which of these weather phenomena is being described?
a) Weather at the back of a cold front
b) A warm front
c) A cold front
d) A blizzard
5.
What will be the effect on the reading of an altimeter of an aircraft parked on the ground during the period following the passage of an active cold front ?
a) It will remain unchanged.
b) It will have increased.
c) It will have decreased.
d) It will show a small increase or decrease.
6.
What will be the effect on the reading of an altimeter of an aircraft parked on the ground shortly before an active cold front passes?
a) It will be increasing.
b) It will remain unchanged.
c) It will be decreasing.
d) It will fluctuate up and down by about +/- 50 feet.
7.
What will be the effect on the reading of an altimeter of an aircraft parked on the ground as an active cold front is passing?
a) It will fluctuate up and down by about +/- 50 feet.
b) It will remain unchanged.
c) It will first increase then decrease.
d) It will first decrease then increase.
8.
Which of the following is typical for the passage of a cold front in the summer ?
a) Rapid drop in pressure once the front has passed
b) Rapid increase in temperature once the front has passed
c) Mainly towering clouds
d) Mainly layered clouds
9.
In a situation with a weak pressure gradient and no thunderstorms around, what will the indication of the aneroid altimeter of an aircraft parked on the ground do over a period of about ten minutes?
a) Decrease rapidly.
b) Show strong fluctuations.
c) Apparently nothing, because any changes would be small.
d) Increase rapidly.
10.
In which of these temperature bands is ice most likely to form on the aircraft's surface?
a) -35°C to -50°C
b) -20°C to -35°C
c) +10°C to 0°C
d) 0°C to -10°C
11.
Which of the following statements is true regarding moderate to severe airframe icing?
a) It is likely to occur in nimbostratus cloud
b) It may occur in the uppermost levels of a cumulonimbus capillatus formation
c) It will occur in clear-sky conditions
d) It always occurs in altostratus cloud
12.
Which of the following statements is true regarding moderate to severe airframe icing?
a) It always occurs in altostratus cloud
b) It may occur in the uppermost levels of a cumulonimbus capillatus formation
c) It is unlikely to occur in nimbostratus cloud
d) It will not occur in clear-sky conditions
13.
In which of these cloud types can icing be virtually ruled out?
a) NS
b) SC
c) CU
d) CI
14.
In which of these cloud types can icing be virtually ruled out?
a) SC
b) CS
c) NS
d) AS
15.
Which of the following conditions is most likely to cause airframe icing ?
a) GR
b) +FZRA
c) PE
d) SHSN
16.
At what degree of icing should ICAO's "Change of course and/or altitude desirable" recommendation be followed?
a) Severe
b) Extreme
c) Moderate
d) Light
17.
At what degree of icing should ICAO's "Change course and/or altitude immediately" instruction be followed?
a) Light
b) Moderate
c) Extreme
d) Severe
18.
What does the term SIGMET signify?
a) A SIGMET is an actual weather report at an aerodrome and is generally issued at half-hourly intervals
b) A SIGMET is a flight forecast, issued by the meteorological station several times daily
c) A SIGMET is a warning of dangerous meteorological conditions
d) A SIGMET is a brief landing forecast added to the actual weather report
19.
What does the term TREND signify?
a) It is the actual weather report at an aerodrome and is generally issued at half-hourly intervals
b) It is a landing forecast added to the actual weather report
c) It is a warning of dangerous meteorological conditions
d) It is a flight forecast, issued by the meteorological station several times daily
20.
Which of the following phenomena should be described as precipitation at the time they are observed?
a) FZFG
b) HZ
c) SN
d) BCFG
21.
Which of the following phenomena should be described as precipitation at the time they are observed?
a) +SHSN
b) VA
c) MIFG
d) BR
22.
Which of the following phenomena should be described as precipitation at the time they are observed?
a) DZ
b) SA
c) TS
d) SQ
23.
Which of the following meteorological phenomena can rapidly change the braking action of a runway?
a) FG
b) +FZRA
c) MIFG
d) HZ
24.
Which of the following phenomena can produce a risk of aquaplaning?
a) +RA
b) FG
c) SA
d) BCFG
25.
Which of these four METAR reports suggests that a thunderstorm is likely in the next few hours?
a) 201350Z 34003KT 0800 SN VV002 M02/M04 Q1014 NOSIG =
b) 201350Z 16004KT 8000 SCT110 OVC220 02/M02 Q1008 NOSIG =
c) 201350Z 21005KT 9999 SCT040CB SCT100 26/18 Q1016 TEMPO 24018G30KT TS =
d) 201350Z 04012KT 3000 BR OVC012 04/03 Q1022 BECMG 6000 =
26.
In which of the following METAR reports, is the probability of fog formation in the coming night the highest?
a) 201850Z 21003KT 8000 SCT250 12/m08 Q1028 NOSIG =
b) 201850Z 25010KT 4000 RA BKN012 OVC030 12/10 Q1006 TEMPO 1500 =
c) 201850Z 15003KT 6000 SCT120 05/04 Q1032 BECMG 1600 BR =
d) 201850Z 06018G30KT 5000-RA OVC010 04/01 Q1024 NOSIG =
27.
Which of these statements best describes the weather most likely to be experienced at 1500 UTC? TAF LSZH 211200Z 211322 22018G35KT 9999 SCT012 BKN030 BECMG 1315 25025G45KT TEMPO 1720 4000 +SHRA BKN025TCU BECMG 2022 25015KT TX18/15Z TN14/21Z =
a) Severe rainshowers, visibility 4000 metres, temperature 15°C, gusts up to 35 knots.
b) Visibility 10 kilometres or more, ceiling 1200 feet, gusts up to 45 knots.
c) Visibility 4000 metres, gusts up to 25 knots, temperature 18°C.
d) Visibility 10 kilometres or more, ceiling 3000 feet, wind 250°, temperature 18°C.
28.
TAF LSZH 250600Z 250716 00000KT 0100 FG VV001 BECMG 0810 0800 VV002 BECMG 1012 23005KT 2500 BR BKN005 TEMPO 1316 6000 SCT007 = Which of these statements best describes the weather that can be expected at 1200 UTC?
a) Visibility 2,5 kilometres, mist, cloud base 500 feet, wind speed 5 knots
b) Visibility 800 metres, fog, wind from 230°, cloud base 500 feet
c) Visibility 800 metres, fog, vertical visibility 200 feet, calm
d) Visibility 6 kilometres, cloud base 500 feet, wind speed 5 knots
29.
Which of the following weather reports could be, in accordance with the regulations, abbreviated to "CAVOK"?
a) 04012G26KT 9999 BKN030 11/07 Q1024 NOSIG =
b) 15003KT 9999 BKN100 17/11 Q1024 NOSIG =
c) 29010KT 9999 SCT045TCU 16/12 Q1015 RESHRA NOSIG =
d) 24009KT 6000 RA SCT010 OVC030 12/11 Q1007 TEMPO 4000 =
30.
Which of the following weather reports could be, in accordance with the regulations, abbreviated to "CAVOK"?
a) 26012KT 8000 SHRA BKN025 16/12 Q1018 NOSIG =
b) 27019G37KT 9999 BKN050 18/14 Q1016 NOSIG =
c) 00000KT 0100 FG VV001 11/11 Q1025 BECMG 0500 =
d) 34004KT 7000 MIFG SCT260 09/08 Q1029 BECMG 1600 =
31.
Which of the following statements is an interpretation of the METAR ? 25020G38KT 1200 +TSGR BKN006 BKN015CB 23/18 Q1016 BECMG NSW =
a) Wind 250°, thunderstorm with moderate hail, QNH 1016 hPa
b) Gusts of 38 knots, thunderstorm with heavy hail, dew point 18°C
c) Mean wind speed 20-38 knots, visibility 1200 metres, temperature 23°C
d) Broken, cloud base 600 feet and 1500 feet, temperature 18°C
32.
Which of the following statements is an interpretation of the METAR ? 00000KT 0200 R14/0800U R16/P1500U FZFG VV001 m03/m03 Q1022 BECMG 0800 =
a) Visibility for runway 14 800 metres, fog with hoar frost, RVR for runway 16 more than 1500 metres
b) RVR for runway 14 800 metres, vertical visibility 100 feet, calm, visibility improving to 800 metres in the next 2 hours
c) Visibility 200 feet, RVR for runway 16 more than 1500 metres, vertical visibility 100 feet, fog with hoar frost
d) Visibility 200 metres, RVR for runway 16 1500 metres, temperature -3°C, vertical visibility 100 metres
33.
Which of the following statements is an interpretation of the SIGMET ? LSAS SIGMET 2 VALID 030700/031100 LSZH- SWITZERLAND FIR/UIR MOD TO SEV CAT FCST N OF ALPS BTN FL 260/380 STNR INTSF
a) Zone of moderate to severe turbulence moving towards the area north of the Alps. Intensity increasing. Pilots advised to cross this area above FL 260
b) Moderate to severe clear air turbulence of constant intensity to be expected north of the Alps
c) Moderate to severe clear air turbulence to be expected north of the Alps. Intensity increasing. Danger zone between FL 260 and FL 380
d) Severe turbulence observed below FL 260 north of the Alps. Pilots advised to cross this area above FL 380
34.
Which of the following statements is an interpretation of the SIGMET ? LGGG SIGMET 3 VALID 121420/121820 LGAT- ATHINAI FIR EMBD TS OBS AND FCST IN W PART MOV E NC
a) The thunderstorms in the Athens FIR are increasing in intensity, but are stationary above the western part of the Athens FIR
b) Thunderstorms must be expected in the western part of the Athens FIR. The thunderstorm zone is moving east. Intensity is constant
c) Thunderstorms have formed in the eastern part of the Athens FIR and are slowly moving west
d) Athens Airport is closed due to thunderstorms. The thunderstorm zone should be east of Athens by 1820 UTC
35.
Compare the following TAF and VOLMET reports for Nice: TAF 240600Z 240716 VRB02KT CAVOK = 0920Z 13012KT 8000 SCT040CB BKN100 20/18 Q1015 TEMPO TS = What can be concluded from the differences between the two reports ?
a) That the weather conditions at 0920 were actually predicted in the TAF
b) That the weather at Nice is clearly more volatile than the TAF could have predicted earlier in the morning
c) That the weather in Nice after 0920 is also likely to be as predicted in the TAF
d) That the VOLMET speaker has got his locations mixed up, because there is no way the latest VOLMET report could be so different from the TAF
36.
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?
a) A warm front passed the station early in the morning and a cold front during late afternoon
b) Storm clouds due to warm air came close to and grazed the station
c) A cold front passed the station early in the morning and a warm front during late afternoon
d) A trough line passed the station early in the morning and a warm front during late afternoon
37.
You have been flying for some time in dense layered cloud. The outside air temperature is -25°C. Which of the following statements is true?
a) Severe airframe icing is unlikely under these conditions
b) If you do not have weather radar on board there is no need to worry, as CB is unlikely to form in such cloud
c) In a dense layered cloud icing is unlikely also at an outside air temperature of -5°C
d) Severe airframe icing is quite likely under these conditions
38.
Thunderstorms in exceptional circumstances can occur in a warm front if
a) the cold air is convectively unstable.
b) the cold air is convectively stable.
c) the warm air is convectively stable.
d) the warm air is convectively unstable.
39.
Low level wind shear is likely to be greatest
a) at the condensation level when there is no night radiation.
b) at the top of a marked surface-based inversion.
c) at the condensation level when there is strong surface friction.
d) at the top of the friction layer.
40.
On an aerodrome, when a warm front is approaching
a) QFE and QNH decrease.
b) QFE and QNH increase.
c) QFE decreases and QNH increases.
d) QFE increases and QNH decreases.
41.
The intertropical convergence zone (ITCZ) particularly affects
a) western Africa, at a latitude of 25°N in July.
b) western Africa between 10°N and 20°N and the northern coasts of the Arabian sea in July.
c) the Atlantic ocean, between latitudes 10°N and 30°N, depending on the time of year.
d) western Africa, where it is situated between the 10°N and 30°N parallels, depending on the time of the year.
42.
An occlusion is called a warm occlusion when the cold air
a) at the rear of the occlusion is colder than the cold air ahead.
b) at the rear of the occlusion is less cold than the cold air ahead, with the warm air at a higher altitude.
c) ahead of the surface position of the occlusion is only at a higher altitude.
d) at the rear of the occlusion is colder than the cold air ahead, with the warm air at a higher altitude.
43.
The region of the globe where the greatest number of tropical revolving storms occur is
a) the north-west Pacific, affecting Japan, Taiwan, Korea and the Chinese coastline.
b) the Caribbean sea, affecting the West Indies, Mexico and the south-east coastline of the USA.
c) the northern Indian ocean, affecting India, Sri Lanka and Bangladesh.
d) the south-western Indian ocean, affecting Madagascar, Mauritius and the island of Réunion.
44.
8/8 stratus base 200 FT/AGL is observed at sunrise at an aerodrome in the north of France; the QNH is 1028 hPa and there is a variable wind of 3 kt. What change in these clouds is likely at 1200 UTC in summer and winter?
a) Winter: clear sky; summer: BKN CB, base 1500 FT/AGL.
b) Winter: SCT, base 3000 FT/AGL; summer: OVC, base 500 FT/AGL.
c) Winter: BKN, base 2500 FT/AGL; summer: BKN, base 3500 FT/AGL.
d) Winter: OVC, base 500 FT/AGL; summer: SCT, base 3000 FT/AGL.
45.
What is the lowest visibility forecast at ETA Zurich 1430 UTC ? LSZH 260900Z 261019 20018G30KT 9999 -RA SCT050 BKN080 TEMPO 1215 23012KT 6000 -DZ BKN015 BKN030 BECMG 1518 23020G35KT 4000 RA OVC010=
a) 4 km.
b) 6 km.
c) 6 NM.
d) 10 km.
46.
What is the lowest cloud base forecast at ETA Zurich 1200 UTC ? LSZH 060900Z 061019 20018G30KT 9999 -RA SCT050 BKN080 TEMPO 1113 23012KT 6000 -DZ BKN015 BKN030 BECMG 1518 23020G35KT 4000 RA OVC010=
a) 1500 FT.
b) 1500 m.
c) 5000 FT.
d) 1000 FT.
47.
The following weather message EDDM 241200Z 241322 VRB03KT 1500 BR OVC004 BECMG 1517 00000KT 0500 FG VV002 TEMPO 2022 0400 FG VV001 is a:
a) SPECI.
b) 9 hour TAF.
c) 24 hour TAF.
d) METAR.
48.
In METAR messages, the pressure group represents the
a) QFE rounded down to the nearest hPa.
b) QNH rounded up to the nearest hPa.
c) QFE rounded to the nearest hPa.
d) QNH rounded down to the nearest hPa.
49.
An altimeter adjusted to 1013 hPa indicates an altitude of 3600 FT. Should this altimeter be adjusted to the local QNH value of 991 hPa, the altitude indicated would be
a) 3006 FT.
b) 4278 FT.
c) 2922 FT.
d) 4194 FT.
50.
In Geneva, the local QNH is 994 hPa. The elevation of Geneva is 1411 FT. The QFE adjustment in Geneva is
a) 967 hPa.
b) 942 hPa.
c) 948 hPa.
d) 961 hPa.
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