Australia Instrument Flight Rating (IFR) Practice Test 2026 - Free IFR Practice Questions and Study Guide

For altitude selection in IFR aircraft that are not equipped with an altitude alerting system, utilizing an assigned altitude selector is essential. This requirement ensures that the pilot is able to reference and select altitudes that have been specifically allocated by air traffic control (ATC) or are necessary for the intended route, enhancing situational awareness and safety.

When operating under Instrument Flight Rules, maintaining the correct altitude as per ATC instructions is crucial to avoid conflicts with other aircraft and to ensure safe navigation through controlled airspace. An assigned altitude selector provides a tangible means for pilots to confirm they are on the correct altitude as recommended by ATC, allowing for more precise navigation and adherence to safe flight levels.

Moreover, while the other options may appear relevant, they are not requirements in the same context. A secondary altitude recorder or an automatic altitude selector may provide additional functions, but the key requirement without an altitude alerting system directly pertains to having an assigned altitude selector for compliance and safety in flight operations.