True or False: When the controller tells you to break departure end, you have to respond with your callsign.

When the controller instructs you to break at departure end, responding with your callsign is essential for clear communication and situational awareness in the cockpit. This response confirms to the controller that you acknowledge the instruction and are taking the appropriate action. It also allows the controller to maintain accountability for traffic in the airspace and ensures that all parties are aware of each aircraft's status. Proper radio communication is critical in maintaining safety and efficiency during flight operations, particularly in busy airspace.

In this context, responding with your callsign directly links your action to your specific aircraft, enhancing the clarity of communication and reducing the risk of miscommunication or confusion among multiple aircraft. This practice adheres to standard operating procedures and promotes effective coordination with air traffic control.