How many types of electrical outlets are there aboard an aircraft?

The correct answer reflects that there are three types of electrical outlets commonly found aboard an aircraft. This usually includes the standard 115V AC outlets, which are used for powering larger devices and are commonly found at passenger seats and in galleys, as well as USB outlets used for charging personal electronic devices. Lastly, there are also 28V DC outlets, which are primarily used for specialized aircraft equipment and some passenger usage.

Understanding the types of electrical outlets is essential for flight attendants to assist passengers effectively with their electronic devices and ensure a smooth travel experience. This knowledge helps in briefing passengers on how to properly use the outlets available to them, enhancing their comfort during the flight. Each outlet type serves a specific purpose and meets the varying needs of both passengers and crew.