On 9 November 2023 at 1130, you are inbound...

Question 1 / 20673956e598d45f16831b6d19

Question 1 of 20673956e598d45f16831b6d19

On 9 November 2023 at 1130, you are inbound at Charleston Harbor Entrance Buoy “10” (ACT6611). Your vessel will transit 15nm and make good 10.0 knots to a berth where the nearest tidal current station is ACT6706. What will be the direction and velocity of the current as you approach the dock? Illustration D058NG

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673956e598d45f16831b6d19

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🔍 Key Concepts

• Use the time-speed-distance formula to find your ETA at the dock from Buoy 10 • Use the correct tidal current station (ACT6706 near the berth) for the time you will be arriving, not for your departure time • From the current graph, distinguish flood vs. ebb and match their mean directions to the answer choices

💭 Think About

• How long will it take you to steam 15 nautical miles at 10.0 knots, and what exact time does that give for your arrival at the dock? • At that arrival time, is the current at ACT6706 flooding or ebbing, and is it closer to a peak, a minimum, or near slack? • Once you read the current value off the graph at that time, which answer choice best matches both the velocity and the direction shown for that phase (flood/ebb)?

✅ Before You Answer

• Compute ETA using ( \text{Time} = \frac{\text{Distance}}{\text{Speed}} ) and add it carefully to 1130 on 9 November • Confirm you are reading the lower graph (ACT6706, near the dock) at your arrival time, not the upper one • Check that your chosen option’s direction matches the correct mean flood or mean ebb direction from the ACT6706 station legend

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Question 1 / 20673956e598d45f16831b6d19

Question 1 of 20673956e598d45f16831b6d19

Back

Question 1 of 20

673956e598d45f16831b6d19

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

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