Sample Paper 16: DGCA Air Regulations questions

Flight safety messages comprise movement and control messages (e.g., FPL, DLA, CNL, DEP, ARR, OLDI messages, etc.), messages by the operator that are of immediate concern to aircraft and some meteorological messages (SIGMET, special air-reports, AIRMET, volcanic ash and tropical cyclone advisories. The priority indicator for such messages is:

Priority indicator SS is used for:

For Distress messages (SS), Urgency messages (DD), Flight safety messages (FF), Meteorological messages (GG) and Aeronautical administrative messages (KK) the order of priority for the message transmission is:

Priority indicator for meteorological messages (excluding SIGMET, special air-reports, AIRMET, volcanic ash and tropical cyclone advisories) is:

Priority order in the ITU Radio Regulations and in Annex 10 for current communication systems is:

1. Distress calls, distress messages, and distress traffic (emergency messages).
2. Communications relating to direction finding (to modify the course).
3. Urgency messages.
4. Flight regularity messages.
5. Meteorological messages (meteorological information).
6. Flight safety messages (movement and control).