Multiple choice general knowledge

Instrument for guiding ships or surveying land.

  1. Seismometer

  2. Sextant

  3. Spherometer

  4. Sphygmophone
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B Correct answer
Explanation

A sextant is a navigational instrument used to measure the angle between two visible objects, primarily for celestial navigation to determine latitude and longitude at sea. It can also be used for land surveying. Anemometer measures wind speed, spherometer measures curvature of surfaces, and sphygmophone is related to pulse measurement.

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