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A section with no camber is described as

  • A.Symmetric
  • B.Reflexed
  • C.Tapered
  • D.Swept

Answer: A

Correct answer: Symmetric

A symmetric section has its mean camber line coincident with the chord, so the upper and lower surfaces are mirror images. It produces no lift at zero incidence, has zero pitching moment about the quarter chord, and behaves identically at positive and negative angles - which is why control surfaces and all-moving tailplanes use symmetric sections.

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