EASA NAV(A)basic
Match each aeronautical navigation term to its correct definition: Terms: 1. True Course (TC) 2. Magnetic Course (MC) 3. Magnetic Variation 4. Compass Deviation Definitions: A. Course measured relative to true (geographic) north B. Course measured relative to magnetic north C. Angular difference between true north and magnetic north D. Angular difference between magnetic north and compass north caused by magnetic fields in the aircraft
Answer
1-A, 2-B, 3-C, 4-D
Explanation
The terms describe different reference systems, and confusing them causes heading and course errors. TC and MC are directional measurements; variation and deviation are angular corrections between north references. **Key takeaway:** Identify the north reference before applying a correction.\n\n**Glossary:** **True north**: geographic north; **magnetic north**: direction of Earth's magnetic field at a location.
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