At which points may you initiate a descent to the next lower minimum altitude for the VOR/DME RWY 36 approach?

Initiating a descent to the next lower minimum altitude during the VOR/DME RWY 36 approach is correctly done at specified DME points. This is an crucial aspect of IFR operations, as it ensures that the pilot follows safe vertical guidance while making the approach. The specified DME points outlined in the approach chart indicate when it is appropriate to change altitudes based on the aircraft's position relative to the course and final approach fix.

When descending at these specified DME points, the pilot can ensure they are at a proper altitude as they progress through different stages of the approach, enhancing safety and compliance with the published procedures. This structured method allows for predictable and controlled descent profiles as the aircraft transitions from the en-route portion of the flight to the landing phase.

Other choices may not reflect the operational standards established for approaches. For example, initiating a descent just before reaching the Initial Approach Fix (IAF) may not align with the procedure and could lead to an unsafe altitude too early. Similarly, restricting descent only to the final approach fix might limit flexibility and not account for real-time conditions demanding earlier descent. Finally, the 5 nautical mile limit before the airport does not encompass the precise procedures that are mapped out for vertical guidance during the approach.