INRAT Instrument Rating · Question
What is the significance of the term 'MSA' on an approach chart?
MSA stands for Minimum Sector Altitude, providing at least 1,000 feet of obstacle clearance within 25 nautical miles of the navigation facility upon which the M
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Question: What is the significance of the term 'MSA' on an approach chart?
Answer options:
- Minimum Safe Altitude - provides 1,000 feet obstacle clearance within 25 NM. ✅ Minimum Sector Altitude - provides 1,000 feet obstacle clearance within 25 NM.
- Maximum Speed Allowed - the highest speed without exceeding structural limits.
- Missed Approach Staging Altitude - the altitude for beginning the missed approach segment.
Correct answer: Minimum Sector Altitude - provides 1,000 feet obstacle clearance within 25 NM.
Explanation: MSA stands for Minimum Sector Altitude, providing at least 1,000 feet of obstacle clearance within 25 nautical miles of the navigation facility upon which the MSA is based. It's primarily for emergency use.
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Question explanations
- When flying an NDB approach, what instrument is primarily used to track the inbound course?
- How does an aneroid barometer in an altimeter respond to a change in atmospheric pressure?
- What is the primary characteristic that differentiates a Localizer Performance (LP) approach from a Localizer
- When interpreting a TAF (Terminal Aerodrome Forecast), what does 'PROB30' indicate?
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