All subjects Video classes The paper Mock test What's inside Before you start FAQ Start practising free→
METEO · CPL written paper

The DGCA Meteorology question bank.

Aviation meteorology from the ISA to a decoded SIGMET — 1,527 questions across 45 chapters, including the Indian climatology and the decoding practice the DGCA paper leans on hardest.

Open the question bank→ See what's inside ₹0 · no card · no limits
1,527Questions
45Chapters
50Question exam paper
₹0Forever, for everyone

Video classes

Be taught Meteorology,
chapter by chapter.

The question bank is free and always will be. The video classes are the other half: 21 recorded chapters covering the whole Meteorology paper. Chapters 1 and 18 are free to watch right now — 2 hr 3 min of teaching, in full, with nothing to sign up for.

Chapter 01 · free

ATMOSPHERE

The first chapter of the AIVR CPL Meteorology video classes, free and in full: the composition and structure of the atmosphere, the layers from the troposphere up, the tropopause, and the ICAO Standard Atmosphere the DGCA paper is set against.

21Chapters
2Free chapters
₹14,000Launch price
28Days of access
Watch 2 chapters free→

₹14,000 for all 21 classes · 28 days of unlimited replays, counted from the day you buy.

What chapter 01 covers

The syllabus this class works through, in order. It is a breakdown of the chapter, not a transcript of it.

  • What the atmosphere is made of — nitrogen, oxygen, argon and carbon dioxide in fixed proportion, and water vapour as the one variable constituent that drives almost every phenomenon in the rest of the paper.
  • The vertical structure: troposphere, tropopause, stratosphere, mesosphere and thermosphere, and why the tropopause sits near 16–18 km over the equator but nearer 8 km over the poles.
  • Temperature with height — the environmental lapse rate, the ISA rate of roughly 1.98 °C per 1,000 ft, and the isothermal layer above the tropopause.
  • The ICAO Standard Atmosphere: 15 °C, 1013.25 hPa and 1.225 kg/m³ at mean sea level, and what each figure is used for.
  • ISA deviation — how to compute it and why altimetry, true airspeed and every performance figure in the syllabus depend on it.
  • How pressure and density fall with height, including the pressure roughly halving by 18,000 ft.
  • The units the DGCA paper actually sets: hectopascals and millibars, inches of mercury, and the conversions between them.

Chapter 18 · free

CLIMATOLOGY OF INDIA

The second free chapter of the AIVR CPL Meteorology video classes, in full: the climatology of India season by season — the southwest and northeast monsoons and what drives their onset and withdrawal, western disturbances, the pre-monsoon and post-monsoon periods, and the regional weather a pilot flying in India is examined on.

57 min · free to watch, no account

Open it in the app→

What chapter 18 covers

The syllabus this class works through, in order. It is a breakdown of the chapter, not a transcript of it.

  • India’s four meteorological seasons — winter, the pre-monsoon hot weather period, the southwest monsoon and the post-monsoon retreating monsoon — and the airline year that runs on top of them.
  • The southwest monsoon: onset over Kerala around 1 June, its progression up the subcontinent, the monsoon trough, break-monsoon conditions and the withdrawal.
  • The northeast monsoon from October to December, and why Tamil Nadu and the Coromandel coast take their rain when the rest of India is drying out.
  • Western disturbances — extratropical systems arriving from the Mediterranean in winter, the rain and snow they bring to north India, and the fog that follows them.
  • Pre-monsoon severe weather: Nor’westers (Kalbaisakhi) over Bengal, Bihar and Assam, Andhis and dust storms over the northwest, and the Loo.
  • Tropical cyclones in the Bay of Bengal and the Arabian Sea, and why India has two cyclone seasons rather than one.
  • The ITCZ and its seasonal migration, which is what the monsoon reversal is actually built on.
  • Winter fog in the Indo-Gangetic plain — how radiation fog forms there and what it does to north Indian airports between December and January.
  • The regional hazards a pilot flying in India meets by season, and the form each of them takes in the DGCA Meteorology paper.

The 21 chapters

  1. 01ATMOSPHEREFree · 1 hr 6 min
  2. 02PRESSURE1 hr 32 min
  3. 03TEMPERATURE48 min
  4. 04DENSITY20 min
  5. 05HUMIDITY21 min
  6. 06WINDS1 hr 53 min
  7. 07VISIBILITY & FOG31 min
  8. 08VERTICAL MOTION AND CLOUDS33 min
  9. 09STABILITY37 min
  10. 10OPTICAL PHENOMENA24 min
  11. 11PRECIPITATION14 min
  12. 12ICE ACCRETION26 min
  13. 13THUNDERSTORMS40 min
  14. 14AIR MASSES35 min
  15. 15JET STREAMS33 min
  16. 16MOUNTAIN WAVES12 min
  17. 17TROPICAL SYSTEMS50 min
  18. 18CLIMATOLOGY OF INDIAFree · 57 min
  19. 19GENERAL CIRCULATION & MET SERVICES31 min
  20. 20RADAR & MET SATELLITES17 min
  21. 21STATION MODEL, METAR & TAF35 min

The paper

What the exam actually looks like.

50Questions in the paper
2 hrsTime allowed
100Total marks
70Pass mark
2 marksPer question

Meteorology is a 50-question, 2-marks-a-question paper. Decoding questions — METAR, TAF, SIGMET, station models — are the cheapest marks on it, because unlike the theory they are a skill you can make automatic in a week.

Sit the full Meteorology mock test→

What's inside

1,527 questions,
45 chapters.

Every question is auto-graded, tagged with the chapter it came from and marked Theory or Numerical. Wrong answers are filed in your mistakes bank automatically, per subject.

01293 questions

The atmosphere, pressure & altimetry

Composition and structure of the atmosphere, the ISA and its lapse rates, temperature, pressure and density and how they interact, pressure systems, and the altimetry chain — QNH, QFE, QNE, transition altitude and the errors that come with each.

AtmosphereDensityPressureTemperatureAltimetryPressure Systems
02230 questions

Moisture, cloud & visibility

Humidity and dew point, adiabatic processes and atmospheric stability, cloud classification and formation, precipitation, fog and the visibility questions, plus the optical phenomena the paper likes to ask about.

CloudsHumidityOpticalPrecipitationStabilityVisibilityAdiabatic and Stability
03181 questions

Wind & the upper air

The pressure gradient, geostrophic and gradient wind, surface friction and veering, land and sea breezes, mountain waves, the general circulation, upper winds, jet streams and clear air turbulence.

General CirculationJetstreamMountain WavesWindsTurbulenceUpper Winds
04187 questions

Hazardous weather

Thunderstorm structure, life cycle and the hazards each stage carries, airframe and engine icing and where it forms, air masses, fronts and depressions, and the windshear and microburst questions.

AirmassIce AccretionThunderstormsAir MassesDepressionsIcing
05169 questions

Indian & global climatology

The southwest and northeast monsoon, western disturbances, the climatology of the Indian subcontinent season by season, tropical revolving storms, global climatic zones and the world area forecast system.

Climatology of IndiaTropical SystemGlobal ClimatologyWorld Area Forecast
06167 questions

Decoding & met services

Reading a METAR and a SPECI, a TAF, a SIGMET and a station model plot, plus the meteorological services chain — briefings, documentation, the forecasts you are entitled to and what each one is actually valid for.

Met BriefingMet ServicesStation ModelMETARSIGMETTAF
07300 questions

Mixed revision & full-length sets

Cross-topic revision sets and full-length practice papers drawn from the whole subject — the sittings that check whether the individual chapters have actually joined up.

Mixed revisionFull-length setsCross-topic practice

Before you start

What to know about
Meteorology.

What the paper testsCause, then consequence

DGCA meteorology questions rarely stop at a definition. They ask what a condition produces — what stability does to turbulence, what a temperature inversion does to visibility, what a cold front does to your cruise.

Learning the mechanism therefore covers far more of the paper than learning the vocabulary does.

What is insideIndian weather is not an afterthought

The monsoon, western disturbances and tropical revolving storms carry their own chapters, because a paper written for Indian candidates asks about them properly and most general aviation-weather material does not.

Decoding gets the same treatment: METAR, TAF, SIGMET and station model each get their own drill rather than one shared "codes" chapter.

Where marks go missingThe ISA arithmetic

The single most reliable source of lost marks is ISA arithmetic done in a hurry — 1.98°C per 1,000 ft rounded badly, the tropopause value misremembered, or a deviation applied with the wrong sign.

It is a five-minute fix and it recurs across altimetry, performance and even navigation, so it is worth being the first thing you make automatic.

How to work through itDecode daily, theorise weekly

Run a short decoding set most days — it is a motor skill and it fades without use. Take the theory chapters more slowly, one system at a time, with practice mode showing the reasoning as you go.

Then sit the full 50-question paper on the clock. Two hours for 50 questions feels generous until the decoding is slow.

Inside a question

Not a list.
A worked answer.

Every MCQ is graded the moment you answer it, with the correct option revealed. Where a worked solution exists it shows the reasoning rather than just the letter — 76 of the 304 numericals in Meteorology.

  • 01
    Auto-graded, all 1,527

    Pick an option and get instant right or wrong with the correct answer revealed — except in exam mode, which reveals nothing until you submit.

  • 02
    Formula box first

    A solved numerical carries the governing equation on its own line, so you can revise by formula before you revise by question.

  • 03
    Numbered method

    Worked step by step from the given data to the answer, with nothing skipped.

  • 04
    Chapter tagged, all 1,527

    Every question carries its chapter and whether it is theory or a numerical, so a wrong answer tells you what to revise.

Meteorology · ISA Numerical

In the International Standard Atmosphere, the temperature at 18,000 ft is:

A−15 °C
B−21 °C✓
C−36 °C
D−56.5 °C

Worked solution

ISA temp = 15 °C − (altitude in thousands of ft × 1.98 °C), up to the tropopause
  1. 1ISA mean sea level temperature = +15 °C
  2. 2Lapse rate = 1.98 °C per 1,000 ft, taken as 2 °C per 1,000 ft for exam work
  3. 318,000 ft × 2 °C = 36 °C of cooling
  4. 415 − 36 = −21 °C — option B. (−56.5 °C is the ISA tropopause value at 36,090 ft.)

Questions about the questions

Meteorology FAQ

Is the DGCA Meteorology question bank free?
Yes — all 1,527 questions, all explanations and every full-length timed paper are free for life, with no paywall and no card. The video classes are a separate, optional product; nothing in the question bank is locked behind them.
Is there a free DGCA Meteorology video class?
Yes. Chapter 1 of the AIVR CPL Meteorology video classes — ATMOSPHERE, 1 hour 6 minutes — is free to watch in full, with no account and no card. It covers the composition and structure of the atmosphere, the layers up to the tropopause and the ICAO Standard Atmosphere. The rest of the syllabus — pressure and temperature through to thunderstorms, icing, the climatology of India and METAR and TAF decoding — is recorded and included with the ₹14,000 course. The chapter list on this page is generated from the course itself, so it always says what is live today.
Does it include METAR and TAF decoding practice?
Yes. METAR, TAF, SIGMET and station model decoding each have their own chapters, so you can drill the codes as a skill rather than meeting them scattered through the theory.
How long is the DGCA Meteorology paper?
It is 50 questions worth 2 marks each in 2 hours — 100 marks, passing at 70. Exam mode on AIVR CPL is that exact paper, timed, with nothing revealed until submission.
Does the bank cover the Indian monsoon?
Yes. The climatology of India, the southwest and northeast monsoon, western disturbances and tropical revolving storms are covered in their own chapters, which is where a DGCA paper differs most from generic aviation weather material.
Is this the same as ATPL Meteorology?
No. DGCA examines ATPL Meteorology as a separate subject with its own 100-question paper, and it has its own separate bank on AIVR CPL.

Cleared for departure.

1,527 Meteorology questions, 45 chapters and a full 50-question paper — waiting, and costing nothing.