Not exactly....
Not exactly...
Please have a look at FCOM 1.28.30 P1 and FCOM 3.02.26 P6a
In smoke config...you can feed one pump from each of the two wing tanks
directly from IDG 1. (Pump N 1) Center tank pumps are unpowered under these circumstances.
As far as I know, there are NO DC pumps. All pumps are either AC with DC control....or Jet Pumps. That is to say....if you have NO AC POWER....you have NO FUEL PUMPS.
If I'm incorrect, please refer me to the appropriate FCOM page(s).
Fly safe,
PantLoad