ATS Surveillance PhraseologyRadio Telephony — DGCA CPL practice questions
Question 1 of 15
"Squawk ident" instructs the pilot to:
All 15 questions — ATS Surveillance Phraseology
Radio Telephony · DGCA CPL. The correct option is marked on each.
Q1. "Squawk ident" instructs the pilot to:
- A.Change frequency
- B.Operate the transponder IDENT feature to flash the return✓
- C.Set 7700
- D.Turn left
Why: IDENT momentarily highlights the return so the controller can identify it.
Q2. "Identified five miles north" means:
- A.You must descend
- B.The controller has positively identified your return✓
- C.You are not on radar
- D.You must squawk standby
Why: It confirms positive radar identification, often with a position.
Q3. When vectoring ends, the controller says:
- A."Squawk standby"
- B."Resume own navigation"✓
- C."Cleared to land"
- D."Go around"
Why: "Resume own navigation" returns navigation responsibility to the pilot.
Q4. Traffic information is given as:
- A.A frequency and a level
- B.Clock bearing, distance, direction of movement, and level/type if known✓
- C.A squawk code
- D.A QNH
Why: lock bearing, distance, direction of movement, and level/type if known. e.g. "traffic, two o'clock, four miles, crossing left to right".
Q5. "Avoiding action, turn left immediately heading 180" must be:
- A.Considered and queried first
- B.Acted on at once and read back✓
- C.Ignored if VFR
- D.Acknowledged with "roger"
Why: cted on at once and read back. Avoiding action is an immediate manoeuvre, executed at once and read back.
Q6. "Squawk Charlie" instructs the pilot to:
- A.Set code 7700
- B.Select Mode C (altitude reporting)✓
- C.Squawk standby
- D.Ident
Why: "Charlie"/Mode C turns on pressure-altitude reporting.
Q7. "Squawk standby" means:
- A.Reply normally
- B.Select standby — the transponder does not reply✓
- C.Set 2000
- D.Ident
Why: Standby stops the transponder replying (e.g. on the ground).
Q8. If a controller suspects the Mode C readout is wrong, they may say:
- A."Squawk ident"
- B."Check altimeter setting and confirm level" / "stop squawk Charlie, wrong indication"✓
- C."Resume own navigation"
- D."Cleared to land"
Why: A Mode C disagreement prompts a level/altimeter check or stopping Mode C.
Q9. A controller can still assist an aircraft with a receiver-only failure if it has:
- A.No transponder
- B.A working transponder (so it can be tracked and instructed blind)✓
- C.A working ELT only
- D.Only HF
Why: working transponder (so it can be tracked and instructed blind). A working transponder lets the controller track it and pass blind instructions acknowledged by squawk.
Q10. To get a no-voice aircraft to confirm it can hear, the controller says:
- A."Confirm visual"
- B."If you read [station], squawk ident"✓
- C."Squawk standby"
- D."Resume own navigation"
Why: An ident in response confirms the pilot is receiving.
Q11. "Resume own navigation" returns to the pilot:
- A.The landing clearance
- B.Responsibility for navigating the aircraft✓
- C.The squawk code
- D.The frequency
Why: It ends ATC heading-vectoring and the pilot navigates again.
Q12. The transponder code for general emergency is:
- A.7500
- B.7600
- C.7700✓
- D.7000
Why: 7700 emergency, 7600 radio failure, 7500 hijack.
Q13. "Traffic in sight" tells the controller:
- A.You will not avoid it
- B.You have visually acquired the reported traffic✓
- C.You have a radio failure
- D.You are identified
Why: It confirms you can see the traffic the controller described.
Q14. Radar service termination is phrased as:
- A."Squawk ident"
- B."Radar service terminated, resume own navigation"✓
- C."Cleared to land"
- D."Avoiding action"
Why: When leaving cover or at transfer, the radar/identification service is terminated.
Q15. The general surveillance interaction sequence is:
- A.Land → taxi → park
- B.Identify → vector → inform/avoid → manage SSR → terminate✓
- C.Climb → cruise → descend
- D.Squawk → ident → land
Why: Identify, vector, give traffic info/avoiding action, manage the transponder, then terminate.