From the given terminology, IFR stands for what?

• A. Inflight Final Report
• B. Instrument Flight Rules
• C. Inflight Regulations
• D. In-Flight Reference

Answer: (B)

Instrument Flight Rules describe flying mainly by reference to cockpit instruments and ATC guidance when weather or conditions prevent reliable visual navigation. Under IFR, pilots file an IFR flight plan, obtain clearance, and follow assigned altitudes, routes, and speeds while relying on instruments to maintain control and separation. This approach contrasts with flying by sight under visual flight rules, where outside visibility and visual cues drive navigation. The term you’re looking for is Instrument Flight Rules.