I didn't get an NDB approach on my checkride. That might have something to do with the fact that the airplane that I took the checkride in didn't have an ADF. If I remember correctly, I had a VOR approach (partial panel), a VOR/DME approach (no timing) and an ILS. Didn't do a procedure turn either. Did some holding, some steep turns, some back-course localizer tracking. My oral only took about 45 minutes, and we only went over IFR enroute charts, and instruments.
In answer to the original question - Expect to be able to navigate using VORs, NDBs, ILSs, GPSs, and be able to do all of it partial panel (meaning using the Magnetic compass when the DG is covered) all under the hood. You will also need to be able to hold at VORs, NDBs, and Intersections, and use the proper entry.