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Una pitada corta tiene una duración aproximada de:A short blast lasts approximately:

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Correct answer: c) One second

Why it is correct

Rule 32 defines a short blast as about one second, and a prolonged blast as four to six seconds.

Why the others are not

  • a) Three seconds matches no definition.
  • b) A short blast is much shorter.
  • d) A prolonged blast is 4 to 6 seconds, so a short blast is not half of it.

How to work it out in the exam

  1. Memorise two figures: short 1 second, prolonged 4 to 6.

Where this question comes from

Regulations

Try it: Sound signals

Pending instructor review. Machine translation, not reviewed.