If I cannot find an iPad, but I think it is nearby, can I have it play a sound to help me locate it?

Yes, as long as the iPad is powered on and connected to the Internet. From Workspace ONE, click on Devices (in the menu on the left), click List View, click the name of the iPad, click More Actions (in the far upper right), then scroll down and choose Find Device.

If you keep the default settings, it will make a sound like an old fashioned telephone ringing for about 15 seconds.