At 0728, you change course to 080°T. When...

Question 1 / 2707066636eea28f7522a1c51a8c5

Question 1 of 2707066636eea28f7522a1c51a8c5

At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?

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Question 1 of 27070

At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?

🔍 Key Concepts

• True course vs. compass course and how to relate them • Difference between variation, deviation, and compass error • Relationship among true, gyro, magnetic, and compass headings

💭 Think About

• Start from the given true course (080°T) and work step-by-step toward the compass reading (097° on the standard magnetic compass). What would you need to know or assume about variation and deviation to test each choice? • Look carefully at which quantities are actually given in the problem. Does the question give you enough information to determine magnetic heading or deviation numerically, or is it really testing your understanding of what compass error means in this exact situation? • For a standard magnetic compass, think: how is compass error defined, and how is it related to the difference between what you intend to steer and what the compass actually reads when you are on the desired true course?

✅ Before You Answer

• Confirm the definition: compass error = True bearing/heading − Compass bearing/heading (adjusted for E/W sign) and how that applies when you are exactly on 080°T but your compass reads 097°. • Check whether you can uniquely determine magnetic heading or deviation from the data given, or if additional information (like local variation) would be required. • Verify which option correctly describes a quantity you CAN determine directly from the difference between 080°T and 097° (including correct E/W sense).

Question 1 of 27070

At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?

The magnetic heading is 090°

The deviation is 1.0°E

The gyro course is 083°pgc

The magnetic compass error is 17°W

Question 1 / 2707066636eea28f7522a1c51a8c5

Question 1 of 2707066636eea28f7522a1c51a8c5

At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?

Back

Question 1 of 27070

At 0728, you change course to 080°T. When steady on course, the standard magnetic compass reads 097°. Which statement is TRUE?