There are seven sources of error in the...

Question 1 / 2066636ee928f7522a1c51a07f

Question 1 of 2066636ee928f7522a1c51a07f

There are seven sources of error in the marine sextant. Of the four errors listed, which one is adjustable?

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Question 1 of 20

66636ee928f7522a1c51a07f

There are seven sources of error in the marine sextant. Of the four errors listed, which one is adjustable?

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🔍 Key Concepts

• Adjustable vs. non-adjustable sextant errors (which ones the navigator can correct on board) • The difference between instrument construction faults and alignment errors • How you normally "line up" the telescope, mirrors, and frame on a sextant

💭 Think About

• Think about which error involves parts that can be physically realigned by the user with small screws or adjustments during a pre-observation check. • Ask yourself: which error would usually be detected and then corrected by aiming at a distant horizon or star and adjusting until images coincide? • Consider which errors are built into the instrument’s scale or optics and therefore cannot realistically be fixed at sea by the navigator.

✅ Before You Answer

• Identify which of the four errors is typically corrected during routine sextant adjustment procedures before taking sights. • Confirm from your notes which errors are considered permanent or non-adjustable manufacturing errors (often requiring professional repair or replacement). • Make sure you distinguish between errors in the graduated arc/scale and errors in the alignment of the optical path (these are treated very differently in practice).

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Question 1 of 20

There are seven sources of error in the marine sextant. Of the four errors listed, which one is adjustable?

Prismatic error

Error of collimation

Centering error

Graduation error

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Question 1 / 2066636ee928f7522a1c51a07f

Question 1 of 2066636ee928f7522a1c51a07f

There are seven sources of error in the marine sextant. Of the four errors listed, which one is adjustable?

Back

Question 1 of 20

66636ee928f7522a1c51a07f

There are seven sources of error in the marine sextant. Of the four errors listed, which one is adjustable?

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