The datum from which the predicted heights...

Question 1 / 2066636ee928f7522a1c5194f8

Question 1 of 2066636ee928f7522a1c5194f8

The datum from which the predicted heights of tides are reckoned in the tide tables is __________.

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Question 1 of 20

66636ee928f7522a1c5194f8

The datum from which the predicted heights of tides are reckoned in the tide tables is __________.

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🔍 Key Concepts

• Chart datum vs. tidal datum and how they are related • The definition of chart soundings and what water level they are based on • Where the reference level for predicted heights is usually described in official tide tables

💭 Think About

• Ask yourself: Tide predictions tell you how much water is above or below what level? Is it the deepest, the highest, or a commonly used reference? • Consider whether tide tables must match the vertical reference used on nautical charts so that depths plus tide heights make sense together. • Think about which choice sounds like a standardized vertical reference used consistently in many harbors, not something that changes from page to page.

✅ Before You Answer

• Verify in an actual tide table where it states: "Heights are referred to _______." • Check which option would allow a navigator to add tide height + charted depth safely for under-keel clearance. • Confirm that the datum used is not the absolute highest water level, but a level that is often close to the lowest predicted tides in the area.

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Question 1 of 20

The datum from which the predicted heights of tides are reckoned in the tide tables is __________.

the same as that used for the charts of the locality

mean low water

given in table three of the tide tables

the highest possible level

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Question 1 / 2066636ee928f7522a1c5194f8

Question 1 of 2066636ee928f7522a1c5194f8

The datum from which the predicted heights of tides are reckoned in the tide tables is __________.

Back

Question 1 of 20

66636ee928f7522a1c5194f8

The datum from which the predicted heights of tides are reckoned in the tide tables is __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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

Quick actions

— No credit card needed