FIRs, Frequencies & Aeronautical InformationRadio Telephony — DGCA CPL practice questions

Question 1 of 18

Within an FIR, which services are provided?

A.Air traffic control only

B.Flight Information Service and Alerting Service

C.Customs and immigration

D.Refuelling and maintenance

All 18 questions — FIRs, Frequencies & Aeronautical Information

Radio Telephony · DGCA CPL. The correct option is marked on each.

Q1. Within an FIR, which services are provided?
- A.Air traffic control only
- B.Flight Information Service and Alerting Service✓
- C.Customs and immigration
- D.Refuelling and maintenance
Why: An FIR is the airspace within which FIS and Alerting Service are provided.
Q2. Controlled airspace extending from the surface upwards around an aerodrome is a:
- A.CTA
- B.TMA
- C.CTR (Control Zone)✓
- D.UIR
Why: TR (Control Zone). A CTR (control zone) is from the surface up; a CTA is from a specified level up.
Q3. The ICAO location indicator for Mumbai is:
- A.BOM
- B.VABB✓
- C.VIDP
- D.VOMM
Why: VABB (ICAO, 4 letters). BOM is the IATA 3-letter code.
Q4. In an ICAO four-letter location indicator, the first letter denotes the:
- A.Specific airport
- B.Region✓
- C.Runway
- D.Airline
Why: 1st = region, 2nd = State/territory, 3rd–4th = location.
Q5. The most controlled ICAO airspace class is:
- A.Class A✓
- B.Class D
- C.Class F
- D.Class G
Why: lass A. Class A is the most controlled (IFR only, all separated); G is uncontrolled.
Q6. Class G airspace is:
- A.IFR only, fully separated
- B.Uncontrolled, with flight information service only✓
- C.Reserved for the military
- D.Above FL600 only
Why: Class G is uncontrolled — no ATC separation, FIS only.
Q7. The international VHF emergency frequency is:
- A.243.0 MHz
- B.118.0 MHz
- C.121.5 MHz✓
- D.406 MHz
Why: 121.5 MHz is the VHF guard; 243.0 MHz is the UHF military guard.
Q8. The SAR auxiliary scene-of-search frequency is:
- A.121.5 MHz
- B.123.1 MHz✓
- C.243.0 MHz
- D.2182 kHz
Why: 123.1 MHz is the auxiliary SAR frequency; 121.5 is the primary guard.
Q9. The VHF aeronautical communication band is:
- A.108.0–117.975 MHz
- B.118.0–136.975 MHz✓
- C.329–335 MHz
- D.3–30 MHz
Why: 118.0–136.975 MHz is the ATC voice band; 108–117.975 is VOR/ILS-LOC.
Q10. The permanent reference manual of a State's aeronautical data is the:
- A.NOTAM
- B.AIC
- C.AIP✓
- D.SNOWTAM
Why: IP. The AIP (parts GEN/ENR/AD) is the permanent publication.
Q11. The three parts of the AIP are:
- A.A, B, C
- B.GEN, ENR, AD✓
- C.N, R, C
- D.SS, DD, FF
Why: GEN (general), ENR (en-route), AD (aerodromes).
Q12. A temporary change of long duration to the AIP is published as a/an:
- A.NOTAM
- B.AIP Supplement✓
- C.AIC
- D.SNOWTAM
Why: IP Supplement. Long-duration temporary changes = AIP Supplement; short-notice = NOTAM.
Q13. A NOTAM that cancels a previous NOTAM is a:
- A.NOTAMN
- B.NOTAMR
- C.NOTAMC✓
- D.SNOWTAM
Why: N = new, R = replace, C = cancel.
Q14. Runway snow, ice and slush conditions are notified by a:
- A.ASHTAM
- B.SNOWTAM✓
- C.AIC
- D.PIB
Why: SNOWTAM (special format) for runway contamination; ASHTAM for volcanic ash.
Q15. The route NOTAM digest provided at briefing is the:
- A.TAF
- B.ATIS
- C.PIB (Pre-flight Information Bulletin)✓
- D.AIC
Why: The PIB gathers the relevant NOTAMs for the route and aerodromes.
Q16. The AIRAC cycle interval is:
- A.7 days
- B.14 days
- C.28 days✓
- D.90 days
Why: AIRAC effective dates recur every 28 days worldwide.
Q17. NOTAMs and flight plans are carried over the:
- A.NFAP
- B.AFTN✓
- C.VOLMET
- D.SACFA
Why: FTN. The Aeronautical Fixed Telecommunication Network carries these messages with priority indicators.
Q18. The highest AFTN message priority is:
- A.FF (Flight safety)
- B.GG (Meteorological)
- C.SS (Distress)✓
- D.KK (Flight regularity)
Why: Descending priority: SS distress, DD urgency, FF flight-safety, GG met, KK regularity.