Final answer:
The statement in the question is false; Launch Enable/Disable switches are usually set to 'Disable' to prevent unintended launch commands when power is applied, ensuring safety until all checks are completed.
Step-by-step explanation:
The statement made in the question is false. Launch Enable/Disable switches are typically set to 'Disable' to prevent any inadvertent launch command signals when electrical power is applied to the Environmental Control System (ECS) or any other system in a vehicle or spacecraft. Their primary function is to ensure that a launch only occurs when explicitly commanded after all safety and readiness checks have been completed.In practice, the 'Enable' position would be used only when the system is deliberately being armed for launch. Any enable switch in its active state before the appropriate time could lead to an accidental launch, which is an extremely undesirable event. To prevent such mishaps, multiple layers of safety protocols, which includes setting such switches to 'Disable', are put in place during the preparation and countdown for a launch.