Speed of a submarine in deep sea & that of an aeroplane is measured by a/an___________________?
Correct answer: A. Pitot tube
- A. Pitot tube
- B. Hot wire anemometer
- C. Rotameter
- D. Stroboscope
Explanation
A Pitot tube determines fluid velocity from the difference between stagnation and static pressure. This principle is used for aircraft airspeed and for measuring submarine speed relative to surrounding water.
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