Which type of electrical outlet is NOT found aboard aircraft?

The correct answer identifies that high-voltage outlets are not found aboard aircraft. Aircraft systems are designed with strict safety protocols to ensure passenger and crew safety, as well as the protection of sensitive electronic systems. High-voltage outlets pose a significant risk due to the potential for electrical hazards, such as sparks or fires, which are unacceptable in the confined and regulated environment of an aircraft.

Cabin electrical outlets, lavatory electrical outlets, and seat-mounted electrical outlets are commonly found in modern aircraft, as they provide power for necessary equipment and passenger convenience, such as charging devices. The use of low voltage in these outlets enhances safety and compliance with aviation standards, making them suitable for operation within the aircraft's environment. High-voltage systems, however, are managed on the ground and are not compatible with the operational needs of an airborne craft.