Compass error is equal to the __________.

Compass error is equal to the __________.

Question 1 of 2707066636ee928f7522a1c5193d0

Compass error is equal to the __________.

Question 1 of 27070

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Q

Compass error is equal to the __________.

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🔍 Key Concepts

• True–Magnetic–Compass (T–V–M–D–C) relationship • Difference between variation (chart) and deviation (compass error caused by the vessel) • How we get from true heading all the way down to compass heading

💭 Think About

• Start from TRUE and work step‑by‑step down to COMPASS using the usual T–V–M–D–C sequence. What two corrections do you apply on the way? • Ask yourself: variation is the angle between TRUE and MAGNETIC. Deviation is the angle between MAGNETIC and COMPASS. What does that make the angle between TRUE and COMPASS? • Look at each choice and decide: is it describing (1) a single step in the chain, or (2) the total correction from TRUE all the way to COMPASS?

✅ Before You Answer

• Be clear on definitions: variation = True vs Magnetic, deviation = Magnetic vs Compass • Check which option correctly represents the total angular difference between TRUE and COMPASS, including sign (E or W). • Eliminate any choice that uses compass course on both sides of the equation or mixes up whether you are going from TRUE to MAGNETIC or MAGNETIC to COMPASS.