
Doppler Log Principles and Applications
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Other
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University
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Practice Problem
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Hard
florencio caringal
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74 questions
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1.
FLASHCARD QUESTION
Front
What is the primary principle behind the Doppler log?
Back
Change in frequency of sound waves due to motion
2.
FLASHCARD QUESTION
Front
What frequency range is typically used in Doppler logs for underwater applications?
Back
20-30 kHz
3.
FLASHCARD QUESTION
Front
Which parameter does the Doppler log directly measure?
Back
Relative speed to water or ground
4.
FLASHCARD QUESTION
Front
In a Doppler log system, the term 'transducer' refers to the device that:
Back
Converts electrical signals to sound waves and vice versa
5.
FLASHCARD QUESTION
Front
What is the main advantage of a Doppler log over a pit log?
Back
Ability to measure speed relative to the seabed
6.
FLASHCARD QUESTION
Front
A Doppler log measures speed over the ground by sending signals in which direction(s)?
Back
Downward
7.
FLASHCARD QUESTION
Front
What happens to the frequency of the signal when the vessel is moving toward the signal source?
Back
It increases
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