A single vertical magnet placed underneath...

Question 1 / 2707066636ee928f7522a1c51a0d6

Question 1 of 2707066636ee928f7522a1c51a0d6

A single vertical magnet placed underneath the compass in the binnacle is used to compensate for __________.

Question 1 of 27070

A single vertical magnet placed underneath the compass in the binnacle is used to compensate for __________.

🔍 Key Concepts

• Compass deviation vs. variation • Purpose of vertical magnets vs. horizontal magnets in a standard magnetic compass binnacle • How heel and trim (inclination) affect a ship’s magnetic field and compass

💭 Think About

• Think about what type of compass error appears when the vessel heels or trims, changing its inclination from the vertical. Which option mentions that effect most directly? • Vertical magnets are placed under or above the compass card. Ask yourself: are they mainly counteracting a vertical or horizontal disturbing magnetic field? And is that field permanent or induced? • Compare the roles: vertical soft iron spheres and horizontal fore‑and‑aft/athwartship magnets. Which errors do each typically correct?

✅ Before You Answer

• Identify which choice refers to an error that changes as the ship’s inclination (heel/trim) changes, not just heading alone • Distinguish between induced magnetism in soft iron and permanent magnetism of the ship’s structure • Confirm from your compass theory notes what a single vertical magnet specifically corrects, and match that phrase carefully to one of the options

Question 1 of 27070

A single vertical magnet placed underneath the compass in the binnacle is used to compensate for __________.

induced magnetism in the vertical soft iron

deviation caused by the vessel's inclination from the vertical

induced magnetism in the horizontal soft iron

the horizontal component of the permanent magnetism

Question 1 / 2707066636ee928f7522a1c51a0d6

Question 1 of 2707066636ee928f7522a1c51a0d6

A single vertical magnet placed underneath the compass in the binnacle is used to compensate for __________.

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Question 1 of 27070

A single vertical magnet placed underneath the compass in the binnacle is used to compensate for __________.