Message Priority, Frequencies & Services: DGCA Radio Telephony (RTR) questions
13 practice questions and 6 flashcards on Message Priority, Frequencies & Services for the DGCA Radio Telephony (RTR) exam, with 1 linked simulator. Try the samples below, then practise the whole topic.
Key concepts
Priority of messages.
1 Distress, 2 Urgency, 3 Direction finding, 4 Flight safety, 5 Meteorological, 6 Flight regularity.
Tip: Remember: D-U-D-F-M-F ('Don't Underestimate Dangerous Flying Machines').
Frequency bands.
HF 3–30 MHz, VHF 30–300 MHz (air band about 118–137 MHz), UHF 300–3 000 MHz.
- VOR/ILS localiser: 108–117.95 MHz
Sample questions
Q1Which is the correct order of priority for radiotelephony messages?
- Distress, flight safety, urgency, direction finding, meteorological, flight regularity
- Urgency, distress, flight safety, meteorological, flight regularity, direction finding
- Distress, urgency, direction finding, flight safety, meteorological, flight regularity
- Flight safety, distress, urgency, direction finding, meteorological, flight regularity
Show the answer
Answer: C. Distress, urgency, direction finding, flight safety, meteorological, flight regularity Annex 10 lists the categories: distress, urgency, communications relating to direction finding, flight safety, meteorological, flight regularity.
Q2What is the aeronautical VHF communications band?
- 30 – 88 MHz
- 300 – 400 MHz
- 118 – 137 MHz (approximately)
- 3 – 30 MHz
Show the answer
Answer: C. 118 – 137 MHz (approximately) VHF aeronautical voice communications use about 118 to 137 MHz. 3–30 MHz is HF.
Q3A mobile station in aeronautical radio terminology is:
- A station in the aeronautical mobile service intended to be used while in motion or halted at unspecified points
- A weather satellite
- A navigational beacon only
- A fixed ground station only
Show the answer
Answer: A. A station in the aeronautical mobile service intended to be used while in motion or halted at unspecified points An aircraft radio station is a mobile station.
Q4Aerodrome control service is provided by:
- The control tower
- Flight information centre only
- Approach control only
- Area control centre
Show the answer
Answer: A. The control tower The control tower provides aerodrome control for the manoeuvring area and aircraft in the vicinity.
The full set is part of lifetime access
All 5,302 questions with explanations, 629 flashcards and 28 simulators for ₹3,499, once.
More Radio Telephony (RTR) topics
Practice questions for study. They are not real DGCA exam papers. Check the current DGCA syllabus and notices.