Which of the following is true regarding the acceptable position of the ATC mode switch?

The statement that the ATC mode switch should be set to ATC is accurate because this mode is crucial for maintaining automatic throttle control in various flight conditions. The ATC (Automatic Throttle Control) mode helps manage engine power and ensures that the aircraft adheres to specific speed and performance parameters, thereby enhancing safety and operational efficiency. When the switch is set to ATC, it allows the aircraft's systems to manage throttle adjustments automatically in response to changing flight dynamics or environmental conditions, which reduces pilot workload and minimizes the risk of human error.

Setting the ATC mode switch ensures that the aircraft maintains optimal performance as intended in its design, especially under conditions that could lead to throttle mismanagement by pilots. Overall, having the ATC switch in the ATC position is a standard practice in aviation that promotes safety and effective aircraft handling.