Each segment of the approach has different MOC (Minimum Obstacle Clearance). Below I have quoted the MOC from ICAO DOC 8168 Volume II for each of the different segments of the approach.
Initial segment (Part I - Section 4, Chapter 3.3.4):
The obstacle clearance in the initial approach primary area shall be a minimum of 300 m (984 ft). In the secondary ...
If your worried something will be on the checkride (which is practical) you need to seek out more practical instruction on the maneuver.
Procedurally this site offers a good explanation:
Base turn consists of:
a specified outbound track and timing or DME distance from a facility; followed by
a turn to intercept the inbound track
My 2014 AIM 5-4-5 Instrument Approach Charts says:
The ILS glide slope is intended to be intercepted at the published
glide slope intercept altitude. This point marks the PFAF and is
depicted by the “lightning bolt” symbol on U.S. Government charts.
Intercepting the glide slope at this altitude marks the beginning of
the final approach segment and ...