Which factor(s) is/are used to develop the...

Question 1 / 2066636ee928f7522a1c51970c

Question 1 of 2066636ee928f7522a1c51970c

Which factor(s) is/are used to develop the charted information of a lighthouse?

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Question 1 of 20

66636ee928f7522a1c51970c

Which factor(s) is/are used to develop the charted information of a lighthouse?

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🔍 Key Concepts

• Geographic range of a light (how far it can be seen based on height and earth’s curvature) • Luminous range of a light (how far it can be seen based on intensity and visibility conditions) • What information about lights is shown on a nautical chart and in the Light List

💭 Think About

• Ask yourself: when cartographers decide what to print on the chart for a lighthouse, are they concerned with the observer’s actual eye height, or with fixed characteristics of the aid to navigation itself? • Consider which of the listed factors change from vessel to vessel and which are constant for all mariners looking at the same charted light. • Think about which factor determines how bright the light appears in clear weather versus which factor determines whether the earth’s curvature hides the light.

✅ Before You Answer

• Identify which options involve only properties of the light itself versus properties of the mariner or vessel. • Recall that charts often show a light’s nominal range and its elevation (height above mean high water)—verify which answer choice best matches those charted items. • Eliminate any choice that depends on who is looking at the light, since charts must be valid for all observers.

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Question 1 of 20

Which factor(s) is/are used to develop the charted information of a lighthouse?

Height of the light only

Height of the observer and the intensity of the light

Height and intensity of the light

Height of the light and the observer

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Question 1 / 2066636ee928f7522a1c51970c

Question 1 of 2066636ee928f7522a1c51970c

Which factor(s) is/are used to develop the charted information of a lighthouse?

Back

Question 1 of 20

66636ee928f7522a1c51970c

Which factor(s) is/are used to develop the charted information of a lighthouse?

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

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