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A caution requires action within 30 seconds and a warning within 3 seconds. The warning allows

  • A.Three times the time
  • B.One tenth of the time
  • C.Ten times the time
  • D.The same time

Answer: B

Correct answer: One tenth of the time

Compare the two response times:

\[ \frac{3}{30} = \frac{1}{10} \]

A warning allows one tenth of the time a caution allows, which is precisely why the two categories are coded differently and treated differently. A warning is red, usually accompanied by an aural alert, and demands immediate action; a caution is amber and demands timely action. The colour coding exists so the crew knows which régime applies before reading the message text.

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