Multiple choice general knowledge

Instrument for measuring depth of the ocean

  1. Anemometer

  2. Sphygmophone

  3. Manometer

  4. Fathometer
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D Correct answer
Explanation

A fathometer is an echo-sounding instrument used to measure the depth of water, particularly in oceans. It works by sending sound waves to the seabed and measuring the time for echo to return. Anemometer measures wind speed, manometer measures pressure, and sphygmophone is for pulse sounds.

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