ATSC 231 Exam Practice Questions and Answers – Updated 2024
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Course
2024/2025
Institution
2024/2025
ATSC 231 Exam Practice Questions and
Answers – Updated 2024
What is the frequency of icing accidents relative to other weather hazards? - Answer-Part
91: 71.%
Part 121: 0.8%
Part 135: 10%
What is the frequency of fatal icing accidents? - Answer-General aviation has the highest
fatal accide...
What is the antidote for inlet icing for turbine powered airplanes? - Answer✔✔-anti-ice
Which Part of the Regulations specifically addresses flight into icing conditions? - Answer✔✔-
Part 135
How does the FAA interprets as 'known ice' and 'known icing conditions'? - Answer✔✔-exist
when visible moisture or high relative humidity combines with temperatures near or below
freezing
Which Part and Appendix of the Regulations that deals with the certification of aircraft for icing
conditions? - Answer✔✔-Part 25
What are the intensities of structural icing? (inches in an hour) - Answer✔✔-Trace: < ¼
Light: ¼ to 1
Moderate: 1 to 3
Heavy: 3 in
What is the definition and characteristics of rime icing? - Answer✔✔-- rough, milky, opaque,
rapid freezing of droplets, brittle
- accretes along stagnation line of airfoil
What is the definition and characteristics of glaze (or clear) icing? - Answer✔✔-- dense, hard,
transparent, lumpy and translucent, may form 'horns'
- formed slow of droplets, clear & smooth (thinner accumulations)
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