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Ship Grounding Awareness

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Questions and Answers

When is the echo sounder typically used to check the depth of water?

When the ship is accurately positioned

When the ship is near the mouth of a river

When crossing over a bar (correct)

When the ship is in a poorly surveyed area

Which of the following devices is used to determine the depth of water by transmitting sound pulses into water?

Echo Sounder (correct)

GPS

Decca

Radar

Why can't the signal used in an echo sounder be electromagnetic?

There is heavy attenuation in water for electromagnetic signals (correct)

It is too expensive to use electromagnetic signals

Electromagnetic signals are not suitable for ranging

Electromagnetic signals cannot be measured accurately

Which of the following is NOT a method used by a ship to determine its position?

<p>Echo Sounder</p> Signup and view all the answers

What is the purpose of checking the depth of water with the echo sounder?

<p>To ensure the depth matches the chart</p> Signup and view all the answers

Ship Grounding Awareness

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Podcast

Questions and Answers

When is the echo sounder typically used to check the depth of water?

Which of the following devices is used to determine the depth of water by transmitting sound pulses into water?

Why can't the signal used in an echo sounder be electromagnetic?

Which of the following is NOT a method used by a ship to determine its position?

What is the purpose of checking the depth of water with the echo sounder?

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