Deck_2014 : General Navigation - 1622/2111
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| When using a recording depth finder in the open ocean, what phenomena is most likely to produce a continuous trace that may not be from the actual ocean bottom? |
| A) Echoes from a deep scattering layer |
| B) Echoes from schools of fish |
| C) Multiple returns reflected from the bottom to the surface and to the bottom again |
| D) Poor placement of the transducer on the hull |
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