COMPETENCE 1 PLAN AND CONDUCT A PASSAGE AND DETERMINATION POSITION
QUESTION: #12
Which of these may cause false echoes in an echo sounder?
ANSWER: Turbulence from the interaction of tidal streams with solid particles in suspension
QUESTION: #12
Which of these may cause false echoes in an echo sounder?
A. Schools of big fish
B. Bioluminescent
microorganisms in the water
C. Protruding rocks from the seabed
D. Turbulence from the interaction of tidal streams with solid
particles in suspension
ANSWER: Turbulence from the interaction of tidal streams with solid particles in suspension
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