ATS Surveillance PhraseologyRadio Telephony — DGCA CPL practice questions

All 16 questions — ATS Surveillance Phraseology

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

1. 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.

2. 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.

3. Q3. A vector is:

   • A.A squawk code
   • B.A heading assigned by the controller, usually with a reason✓
   • C.A frequency
   • D.A clearance to land

   Why: heading assigned by the controller, usually with a reason. Vectoring is the assignment of headings for spacing, separation or positioning.

4. Q4. 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.

5. Q5. 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: Clock bearing, distance, direction of movement, and level/type if known. e.g. "traffic, two o'clock, four miles, crossing left to right".

6. Q6. "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: Acted on at once and read back. Avoiding action is an immediate manoeuvre, executed at once and read back.

7. Q7. "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.

8. Q8. "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).

9. Q9. 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.

10. Q10. 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: A 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.

11. Q11. 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.

12. Q12. "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.

13. Q13. The transponder code for general emergency is:

    • A.7500
    • B.7600
    • C.7700✓
    • D.7000

    Why: 7700 emergency, 7600 radio failure, 7500 hijack.

14. Q14. "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.

15. Q15. 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.

16. Q16. 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.