All questions: 41

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Random 5 questions:
1. With regard to the pneumatic mechanical devices which afford protection against the formation of ice, the only correct statement is:
2. The ice protection system currently used for the most modern jet aeroplanes is the:
3. In jet aeroplanes the thermal anti-icing system is primarily supplied by:
4. Why do the de-icing boots inflate alternately?
5. How much ice should be allowed to accumulate on the leading edge of the wing before the “de-icing boot” system is activated?