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10 Cards in this Set
- Front
- Back
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How was the word SONAR derived?
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From the initial letters of SOund, NAvigation and Ranging.
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In echo-ranging sonar, what is the source of the sound wave used?
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The transducer
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What are the three main characteristics of seawater that affect the speed of a sound wave passing through it?
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The salinity, the pressure, and the temperature.
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On the azimuth and range indicator of the AN/ASQ-13E, what does the cursor intensity
knob control? |
It controls the brightness of the cursor.
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What is the length of the special-purpose cable of the AN/ASQ-13E?
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500±5 feet.
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What are the staves of the hydrophone assembly filled with?
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Oil.
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What is an anomaly?
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A detectable distortion.
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What happens to the magnetic field of an
aircraft as it maneuvers? |
The magnetic field will change.
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How many units are therein the ASA-64 SAD group?
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One.
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With a sonobuoy equipped with EFS, how many depth settings are available?
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50.
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