Well the first one was too easy, but I can't think what the second one is, somewhere in the engine bay perhaps?? Will it be acid dipped again before being e-coated? Just I see the spots of rust forming on whatever the second photo is.
It's not rust it's brown goo, not sure if it's seam sealer turned that colour by the dipping or the chemical itself.
Yes it does get dipped again to remove any surface rust that may appear while we've got it back.
Not part part of the engine bay Freddy.