Meteorological Services for AviationAviation Meteorology — DGCA CPL practice questions
Question 1 of 23
For non-scheduled National Flights, advance notice (before ETD) is required to be given to AMOs
All 23 questions — Meteorological Services for Aviation
Aviation Meteorology · DGCA CPL. The correct option is marked on each.
Q1. For non-scheduled National Flights, advance notice (before ETD) is required to be given to AMOs
- A.24 hr
- B.18 hr
- C.6 hr✓
Why: Non-scheduled national flights require 6 hr advance notice to Aerodrome Met Offices.
Q2. For non-scheduled National Flights, advance notice to AMSs is required
- A.3 hr
- B.18–24 hr✓
- C.6 hr
Why: Aeronautical Met Stations need longer lead time for non-scheduled national flights.
Q3. WAFS provides high quality en-route forecasts of winds and temperature to Met Offices
- A.high-quality en-route forecasts✓
- B.SIGMET
- C.TREND
Why: WAFS provides high-quality en-route wind and temperature forecasts.
Q4. IMD has ……… Regional Met offices
- A.4
- B.5
- C.6✓
Why: The national met department operates 6 Regional Meteorological Centres.
Q5. In AIREP, Met Information is contained in Section
- A.1
- B.2
- C.3✓
Why: In an air-report the meteorological data is carried in Section 3.
Q6. TAF are generally valid for
- A.18 hr
- B.12 hr
- C.30 hr✓
Why: Aerodrome forecasts at major airports are commonly issued with a 30 hr validity.
Q7. The validity of Landing Forecast (TREND) is
- A.1 hr
- B.2 hr✓
- C.3 hr
Why: A trend-type landing forecast is valid for 2 hours from time of observation.
Q8. Local/Area Forecast is issued three times a day valid for next
- A.18 hr
- B.12 hr✓
- C.9 hr
Why: Issued three times daily, each local/area forecast is valid for 12 hours.
Q9. Area Forecast covers an area
- A.100 NM✓
- B.100 km
- C.50 NM
Why: Area forecast covers a radius of about 100 nautical miles.
Q10. SIGMET is a notice of severe weather for
- A.actual
- B.expected
- C.both✓
Why: SIGMET warns of phenomena occurring or expected to occur.
Q11. SIGMET is issued for aircraft
- A.in flight✓
- B.on ground
- C.both
Why: SIGMET is a warning intended for aircraft in flight.
Q12. SIGMET is issued by
- A.WAFC
- B.AMO
- C.MWO✓
Why: SIGMET is issued by the Meteorological Watch Office.
Q13. SIGMET is valid for
- A.4 hr✓
- B.8 hr
- C.9 hr
Why: Standard SIGMET validity is 4 hours.
Q14. SIGMET is not issued for
- A.Rain✓
- B.Volcanic Ash
- C.SEV Icing
Why: Ordinary rain is not a SIGMET phenomenon; volcanic ash and severe icing are.
Q15. AIRMET is SIGMET issued by a MWO for the safety of
- A.low-level aircraft✓
- B.high-level flights
- C.all
Why: AIRMET concerns weather affecting low-level aircraft operations.
Q16. GAMET is an area forecast in abbreviated plain language for
- A.low level flights✓
- B.high level flights
- C.all level flights
Why: GAMET is an area forecast in abbreviated plain language for low-level flights.
Q17. Wind Shear Warning is issued for observed or expected wind shear above runway (up to)
- A.up to 500 m✓
- B.above 500 m
- C.300 m
Why: Wind shear warnings cover the layer between runway level and 500 m above it.
Q18. VOLMET is a MET information for aircraft
- A.on ground
- B.in flight✓
- C.both
Why: VOLMET is a broadcast of met information for aircraft in flight.
Q19. VOLMET consists of
- A.SIGMET only
- B.TAF only
- C.TAF and METAR✓
Why: VOLMET broadcasts comprise METAR and TAF.
Q20. Global SIGWX Charts are issued ……… times a day
- A.Two
- B.Three
- C.Four✓
Why: Global significant weather charts are issued four times daily.
Q21. Global SIGWX Charts for Medium-level are issued for Flight Levels
- A.150 & 200
- B.100 & 250✓
- C.100 & 150
Why: Medium-level SIGWX charts cover the FL100 to FL250 layer.
Q22. Individual TS which cover less than 50% area is termed as
- A.ISOL TS✓
- B.FRQ TS
- C.OCNL TS
Why: Isolated denotes individual thunderstorms covering less than 50% of the area.
Q23. If TS cells have no separation between adjacent TS and cover an area more than 75%, it is termed as
- A.FRQ✓
- B.ISOL
- C.OCNL
Why: Frequent means thunderstorms with little/no separation covering more than 75% of the area.