At 0700, your gyro alarm sounds. What course...

Question 1 of 2707066636eea28f7522a1c51a88d

At 0700, your gyro alarm sounds. What course should you steer by the standard magnetic compass in order to maintain your original heading of 078°T?

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Question 1 of 27070

At 0700, your gyro alarm sounds. What course should you steer by the standard magnetic compass in order to maintain your original heading of 078°T?

🔍 Key Concepts

• Gyro error and how it affects the indicated true heading • The relationship between True (T), Magnetic (M), and Compass (C or psc): "True ± Variation = Magnetic; Magnetic ± Deviation = Compass" • How to apply deviation to convert from magnetic to standard compass course (psc)

💭 Think About

• What information must you get from the gyro (or gyro error card) to know the real true heading your ship is actually on when the alarm sounds? • Once you know the correct true course you want (078°T), how do you step-by-step move from True → Magnetic → Compass using the variation and deviation? • Look at the answer choices: which ones make sense if the compass has a known deviation on headings near 078°T or the equivalent magnetic course?

✅ Before You Answer

• Be sure you are converting in the correct direction: from True to Compass (psc), not the other way around • Confirm whether the gyro error should be added or subtracted from the gyro reading to get the actual true heading • Check that your final compass course is consistent with the expected sign (E or W) of both variation and deviation in your assumed area.