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Air Traffic Services and Airspace — DGCA CPL Air Regulations
Chapter 04 of the Air Regulations paper. 993 practice questions in the Avielevate bank, every one with its answer key, filterable into a timed set on this chapter alone.
What this chapter covers
The learning objectives we file Air Traffic Services and Airspace questions under, and how many sit behind each. These come straight out of the bank and are regenerated whenever it changes — they are what is there today, not a claim.
| Learning objective | In the bank |
|---|
| 0104 Airspace Classification & Air Traffic Services | 164 questions |
| 0105 ATS Separation Minima | 132 questions |
| 0106 Aerodrome & Approach Control Procedures | 118 questions |
| 0107 Aerodrome Movement Area & Ground Operations | 59 questions |
| 0108 Radar Separation & Surveillance (SSR/ADS-B) | 109 questions |
| 0109 Aeronautical Information Services (AIP/NOTAM) | 97 questions |
| 0111 Aerodrome Design & Characteristics | 239 questions |
| 0118 Q-Codes & Aviation Abbreviations | 75 questions |
Sample Air Traffic Services and Airspace questions, answered and explained
Real questions from this chapter, with the answer marked and the reasoning written out — the same explanations you get inside the app.
010087 · Air Traffic Services and Airspace
Which airspace class allows IFR and VFR, provides ATC advisory to IFR, and FIS on request to all?
- AClass G.
- BClass D.
- CClass F.
- DClass E.
Why that is the answer
Class F is the ICAO airspace class offering advisory service to IFR and FIS to all, with both IFR and VFR permitted.
- ICAO airspace classification defines Class F as an advisory airspace in which both IFR and VFR flights are permitted.
- In Class F, ATC provides only an advisory service to IFR flights (not full separation service), while Flight Information Service (FIS) is available to all flights on request.
- Class G (A) is uncontrolled airspace offering FIS only, with no advisory service to IFR traffic, so it does not match.
- Class D (B) and Class E (D) both involve a full ATC clearance and active separation service to IFR flights, which exceeds the merely advisory service described.
- Correct: C — Class F.
010103 · Air Traffic Services and Airspace
On a PAPI, when will an approaching pilot see the two units nearest the runway as red and the two units farthest from the runway as white?
- AWhen above the approach slope
- BWhen on or near the approach slope
- COnly when exactly on the approach slope
- DBelow the approach slope
Why that is the answer
The Precision Approach Path Indicator (PAPI) consists of a single wing bar of four light units set beside the runway, each unit showing red or white depending on the aircraft's vertical position relative to the designated approach slope, due to a sharp red/white transition in each unit's beam. When the aircraft is on the correct approach slope, the pilot sees two units red (the two nearer the runway) and two units white (the two farther from the runway) - commonly remembered as two red, two white, on the right height. Being above the slope shows more white units (three or four white), while being below the slope shows more red units (three or four red). Since the question describes the balanced two-red/two-white indication, which occurs on or very close to the correct slope within a small tolerance band, the correct answer, per the key, is B.
- Recall the PAPI system design: a wing bar of four units, each showing red or white based on vertical approach angle.
- Recall the standard interpretation: two red and two white units indicate the aircraft is on or close to the correct approach slope.
- Note that being above the slope shows increasingly more white units, and below the slope shows more red units, not a 2-and-2 split.
- Eliminate option A (above slope) and option C (an overly rigid 'only exactly on slope' reading) as inconsistent with the balanced indication.
- Conclude the correct answer is B - on or close to the approach slope.
010139 · Air Traffic Services and Airspace
How are long-term temporary changes (three months or longer) and short-term but extensive or graphical information published?
- AAIP Supplements
- BTrigger NOTAM
- CNOTAM
- DAeronautical Information Circular (AIC)
Why that is the answer
Per Annex 15, AIP Supplements are specifically the vehicle used for two categories of temporary information: changes of long duration (typically three months or more) and changes of short duration that involve lengthy text or graphics unsuitable for a standard NOTAM format. This is precisely the pairing of criteria stated in the question. A 'Trigger NOTAM' (option B) is a different concept — a short NOTAM issued to alert users that an AIP amendment or supplement has been published and takes effect, not the primary vehicle for the content itself. An ordinary NOTAM (option C) is reserved for concise, time-critical operational notices, not extensive graphical or long-duration material. The correct answer is A: AIP Supplements.
- Identify the two criteria in the question: long-duration temporary changes (3+ months) and extensive/graphical short-term information.
- Recall that Annex 15 assigns both these cases specifically to AIP Supplements.
- Distinguish a Trigger NOTAM as a pointer notice to an amendment/supplement, not the content vehicle itself.
- Eliminate ordinary NOTAM as unsuited to lengthy or graphical content.
- Conclude such information is published as AIP Supplements — answer A.
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Frequently asked
How many Air Traffic Services and Airspace questions are there for the DGCA CPL Air Regulations paper?
Avielevate's bank carries 993 published Air Traffic Services and Airspace questions for Air Regulations, mapped across 8 learning objectives. Every one has its answer key, and explanations are being written across the whole bank.
How much of the Air Regulations paper is Air Traffic Services and Airspace?
The DGCA does not publish a per-chapter breakdown of its papers, so nobody can honestly tell you — and we will not guess. What we can tell you is what students who have just sat a paper reported meeting, which is measured rather than rumoured: that is the exam recall report inside the app.
What is the best way to revise Air Traffic Services and Airspace?
Sit a short timed set on this chapter alone, tag how sure you were of each answer, then drill the two that actually leak marks: the ones you got right while guessing, and the ones you got wrong while confident. Avielevate does that tagging for you and puts anything you got wrong back in front of you on a spaced schedule.
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