IFR operations quiz – Autumn 2025

1. What is the segment minimum safe altitude or ‘not below’ altitude at 13.9 DME?
   1. 4,100 feet
   2. 4,150 feet
2. What is the 24 DME ARC flown with reference to?
   1. CS VOR/DME
   2. ICN DME
3. What are the tracking tolerances for a DME arc?
   1. ± 1 nm
   2. ± 2 nm
   3. ± 3 nm
   4. ± 4 nm
4. Where is the IAF when joining to fly the reversal procedure?
   1. established inbound 330 at 24 DME CS
   2. established on the 24 DME arc
   3. passing the CS NDB or CS VOR tracking 117 outbound
5. Where must the DME arc be joined?
   1. at or before an IAF
   2. only after crossing an IAF
   3. outside 10 nm from the station
   4. within 2 nm of a published fix
6. For what optimal descent profile does the DME distance/altitude scale provide guidance?
   1. 3 degrees to the runway threshold
   2. 3 degrees to a point 450 m past the runway threshold
   3. 3.1 degrees to the runway threshold
   4. 3.1 degrees to a point nominally 300 m past the threshold
7. Published visibility on IAL charts with a straight-in minima generally specifies a distance, measured in km, from the aircraft’s position at the MDA or DA on the published vertical path, to a point located:
   1. 800 m prior to the threshold
   2. the runway threshold
   3. 160 m (500 feet) past the approach threshold, or approach landing lights if appropriate
   4. the midpoint of the runway
8. When tracking via the 24 nm arc, when can you descend below 6,800 feet?
   1. crossing the LR-145 or LR-156, you can descend to 5,500 feet
   2. crossing the LR-145 or LR-156, you can descend to 6,200 feet
   3. within half scale deflection of the LLZ, you can descend to 5,500 feet
   4. only after passing HENDO, can you descend to 6,200 feet
9. What is the maximum speed for crossing 6.9 DME ICN in a category B aircraft?
   1. 120 knots IAS
   2. 120 knots groundspeed
   3. 130 knots groundspeed
   4. 130 knots IAS
10. What is the minimum altitude that can be flown to, before needing to be visual in a Category B aircraft for this approach?
    1. 630 feet decision altitude (DA)
    2. 730 feet minimum descent altitude (MDA)
    3. 630 feet minimum descent altitude (MDA)
    4. 730 feet decision altitude (DA)
11. What is the maximum IAS that can be flown in a Category A aircraft during the missed approach turn?
    1. 100 knots
    2. 110 knots
    3. 140 knots
    4. 150 knots
12. What is the maximum IAS that can be flown in a Category B aircraft during the missed approach turn?
    1. 110 knots
    2. 130 knots
    3. 140 knots
    4. 150 knots
13. What is the maximum IAS that can be flown in the published holding pattern if at or below FL140 prior to commencing an approach?
    1. 170 knots
    2. 200 knots
    3. 230 knots
    4. 240 knots
14. Does a METAR QNH satisfy the requirement of an actual QNH if reported within the last 15 minutes?
    1. yes
    2. no
15. When becoming visual in rain, the presence of a light film of water on the windscreen can create a visual illusion; how can this make the approach look to the pilot?
    1. steeper than it actually is which can feel high on the approach
    2. shallower than it actually is which can feel low on the approach
    3. further to the runway than it actually is
    4. no illusion will be experienced

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