What code should be selected by a VFR aircraft under ATC radar service restrictions?

• A. 1200
• B. 1000
• C. 7777
• D. 0000

Answer: (A)

The main idea here is understanding transponder squawk codes. For VFR flights, 1200 is the standard code used when you’re not assigned a specific discrete code by ATC. Even if ATC radar services are available but restricted, you would still begin with the standard VFR squawk unless ATC instructs you to change to a different discrete code. ATC uses a unique code to identify your airplane when they want to track you more precisely, and you must switch to that code if they give you one.

Why this one fits: 1200 is the recognized, default VFR squawk code that signals to ATC you’re operating VFR and not IFR, in many airspace scenarios. It provides a consistent, identifiable beacon on radar when you’re not under a specific radar assignment.

Why the others don’t fit: 1000 is not the standard contemporary VFR code in typical ATC practice. 0000 isn’t a normal, usable VFR code for routine operations. 7777 isn’t used for civilian VFR squawking and would not be appropriate for standard ATC interactions.