Avielevate / DGCA CPL papers / Radio Telephony / Radio-Navigation Aids and Communications
Radio-Navigation Aids and Communications — DGCA CPL Radio Telephony
Chapter 06 of the Radio Telephony paper. 80 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 Radio-Navigation Aids and Communications 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 |
|---|
| __GEN__ General | 80 questions |
Sample Radio-Navigation Aids and Communications 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.
0606035 · Radio-Navigation Aids and Communications
When the pilot selects "ALT" on the transponder, it transmits:
- AThe Mode A code and Mode C altitude information
- BOnly the assigned 4-digit Mode A code
- CA special identification signal that makes the target flash on the controller's screen
Why that is the answer
In ALT mode the transponder sends **both the Mode A identity code and Mode C altitude**.
ATC then sees the aircraft's squawk and its flight level.
0606037 · Radio-Navigation Aids and Communications
In a VOR, the reference signal is:
- ARotating
- BAmplitude modulated at 30 Hz
- CFixed omnidirectional
Why that is the answer
The reference signal is **the same in all directions (omnidirectional)**.
The variable signal's phase changes with direction, and comparing the two gives the bearing.
0606045 · Radio-Navigation Aids and Communications
If the VOR CDI needle is centred and the TO/FROM indicator shows "TO", the aircraft is:
- AOn the selected radial and flying away from the station
- BOn the selected course line and flying toward the station
- CDirectly over the VOR station (the cone of confusion)
Why that is the answer
The aircraft is **on the selected course and the course leads towards the station**.
Free while we are testing
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bank, timed mock exams, explanations and weak-topic analytics.
Avielevate is a preparation tool. Always study alongside the official DGCA
publications and the approved reference material for your course.
Frequently asked
How many Radio-Navigation Aids and Communications questions are there for the DGCA CPL Radio Telephony paper?
Avielevate's bank carries 80 published Radio-Navigation Aids and Communications questions for Radio Telephony, mapped across 1 learning objective. Every one has its answer key, and explanations are being written across the whole bank.
How much of the Radio Telephony paper is Radio-Navigation Aids and Communications?
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 Radio-Navigation Aids and Communications?
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.
The rest of the Radio Telephony paper
One account covers every chapter of every paper.
← All Radio Telephony chapters · All six DGCA CPL papers