21-07. (H) ANTI-ICING AND DE-ICING SYSTEMS
All questions: 10
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Questions for exams: 10
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1. Warning lights associated with basic pitot/static heating systems in helicopters usually inform the pilot that, when illuminated:
2. The accurate method of removing snow and ice that has accumulated on the aircraft during parking, is:
3. Helicopter engine Bellmouth air intakes:
4. Ice buildup on the airframe, rotor blades and engine can lead to a number of hazards and limitations:
1) Increase in power requirements.
2) Increase in A.U.W.
3) Increase in vibration.
4) Decrease in controllability.
5) Change to rotor profile.
5. The advantages of thermal anti-icing are: 1) simple and reliable system 2) profiles maintained 3) greater efficiency than that of an electrical resistor 4) direct use of the hot air from the jet engine without substantial reduction in engine thrust The combination of correct statements is:
