If the visibility is 3 miles, at what range...

If the visibility is 3 miles, at what range...

Question 1 of 29218fork_c6d9477f91184214a66

If the visibility is 3 miles, at what range will you lose sight of Chesapeake Light?

Question 1 of 29218

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Q

If the visibility is 3 miles, at what range will you lose sight of Chesapeake Light?

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🔍 Key Concepts

• Geographic range vs. luminous range of a light • Effect of meteorological visibility on how far a light can be seen • Use of nominal range diagrams or visibility tables in light lists

💭 Think About

• Think about whether the question is asking how far away the light CAN first be seen, or at what distance it will DISAPPEAR as you go farther away. • Consider how a visibility of 3 miles limits the luminous range of a light, even if the geographic range is much greater. • Ask yourself: in 3‑mile visibility, can any light be seen farther than 3 miles, regardless of its power?

✅ Before You Answer

• Identify whether the controlling factor is visibility or the charted/nominal range of Chesapeake Light. • Compare each answer choice to the stated 3‑mile visibility and see which ones are obviously inconsistent. • Verify how exam questions usually treat “visibility X miles” when asking about when a light becomes obscured.