All echo-sounders can measure the _________.Select the correct response:average depth from waterline to hard bottomactual depth of wateraverage depth of water to soft bottomactual depth of water below keel
Question
All echo-sounders can measure the _________.Select the correct response:average depth from waterline to hard bottomactual depth of wateraverage depth of water to soft bottomactual depth of water below keel
Solution
The correct response is "actual depth of water". Echo-sounders are used to measure the actual depth of water by sending sound waves down through the water. When these waves hit the bottom, they bounce back up to the echo-sounder, which then calculates the depth based on the time it took for the waves to return.
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