Which of the following statements is true regarding the operations in restricted patterns?

The statement that aircraft must maintain separation at all times is true regarding operations in restricted patterns. This requirement is critical for ensuring safety and preventing collisions, especially in spaces where multiple aircraft are operating in proximity to one another. In restricted patterns, the need for maintaining a safe distance between aircraft minimizes the risk of accidents and enhances overall operational efficiency.

In contrast, the other statements do not reflect the operational guidelines for restricted patterns, where safety and situational awareness are prioritized. Maneuvers are typically regulated within these patterns to avoid conflicts, simultaneous takeoffs are usually prohibited to ensure controlled departures, and not all approaches may be visual due to potential restrictions or weather conditions. Thus, the focus on maintaining separation is paramount in ensuring safe operations in restricted environments.