Answer :
Final answer:
The correct indication during a normal operational check of a pneumatic deicer system is no inflation of deicer boots. Rapid inflation, continuous inflation, or slow and uneven inflation suggest a malfunction in the system.
Explanation:
The correct indication during a normal operational check of a pneumatic deicer system is C. No inflation of deicer boots.
This means that during the check, there should be no inflation of the deicer boots because they are working properly. If there is rapid inflation and deflation (A), continuous inflation (B), or slow and uneven inflation (D), it suggests a malfunction in the system.
It is important to ensure that the deicer system is functioning correctly to maintain safe flight operations in icy conditions.
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