Which statement about the Flinders bar of...

Question 1 / 2707066636ee928f7522a1c51a169

Question 1 of 2707066636ee928f7522a1c51a169

Which statement about the Flinders bar of the magnetic compass is CORRECT?

Question 1 of 27070

Which statement about the Flinders bar of the magnetic compass is CORRECT?

🔍 Key Concepts

• Flinders bar location and what kind of magnetic field it corrects • Difference between vertical and horizontal components of the Earth’s magnetic field • What causes quadrantal deviation vs what causes heeling error

💭 Think About

• Ask yourself: Is the Flinders bar soft iron or permanent (hard) iron, and how does that affect what kind of error it can correct? • Think about which deviation errors change with latitude (as the Earth’s magnetic dip changes) and which ones are mainly related to heading only. • Match each choice to a specific compass error: which option clearly relates to vertical magnetism, which to heeling, and which to quadrantal deviation?

✅ Before You Answer

• Be sure you know that quadrantal deviation is typically corrected by soft iron spheres (“Kelvin’s balls”), not by the Flinders bar. • Verify which error is associated with the vertical component of the Earth’s magnetic field and how that changes when you steam toward the poles or equator. • Confirm where the Flinders bar is physically placed relative to the compass and what orientation (vertical vs horizontal) it has—this is a big clue to what it corrects.

Question 1 of 27070

Which statement about the Flinders bar of the magnetic compass is CORRECT?

It compensates for error caused by the heeling of a vessel in rough seas

It compensates for quadrantal deviation in horizontal hard iron

It is only needed in equatorial waters if the vessel is on a cardinal heading

It compensates for the error caused by the vertical component of the Earth's magnetic field

Question 1 / 2707066636ee928f7522a1c51a169

Question 1 of 2707066636ee928f7522a1c51a169

Which statement about the Flinders bar of the magnetic compass is CORRECT?

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Question 1 of 27070

Which statement about the Flinders bar of the magnetic compass is CORRECT?