Yes - except for when it isn't. Happened to me once - boarding gate at CNX, showed my DL and boarding pass and they insisted I show them my passport. Other times never had a problem.
This is a standard Thai powerpoint. Older places may not support Type B - US three-pin then you need a three-pin to two-pin converter. As long as your device can accept 220 volts which most modern electronics will (things like hairdryers won't), you will be fine.
Relative to where you want to live in Thailand but the CMU course is highly regarded. No offense - this is actually a compliment - unless someone wrote your FB post for you, your English is fine.