As far as the snake bite and obscure questions-
1. For me, being an EMT has taken me to many parts of the globe; jungle, desert, forests, Alaska in February, North South, East and West. MY first official EMT course for NREMT cert was in Mississippi, "30 something years ago". The nurse teaching didn't think we needed frost bite. I've frozen my rear off on the flightline in Biloxi unloading aircaft. You never know what or when you need this. Granted some may seem "stupid" but you may see it again.
2. Remember, this is set up for world wide testing. With DOD using NREMT, it's global
3. The ?'s are randomly pulled from thousands of EMT questions, based on YOUR ability. It's adaptive to only YOUR response.
Just my 2 cents. Or as a student wrote one time "my too senses"