Yes, a single AP (Access Point) can broadcast multiple SSIDs.
SSID (Service set identifier) is an arbitrary sequence of characters that uniquely name for a wireless local area network. The SSID is broadcast by stations in beacon packets to announce the presence of a network. The wireless user can see the SSIDs for the available networks from wireless access point and join one of them.
ORing wireless APs support Multiple-SSID. When enable this mode, the access point is able to create and broadcast multiple wireless networks. Each wireless network with its own profile that including SSID, channel, security and other options.
The benefit of Multiple-SSID is to separate connections by wireless network through different encryptions. In many application scenarios, such as factories, stations and offices, multiple-SSID can make the use more flexible.