Which is the dividing meridian between zone...

Question 1 / 2707066636ee928f7522a1c5195e2

Question 1 of 2707066636ee928f7522a1c5195e2

Which is the dividing meridian between zone descriptions -4 and -5?

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Question 1 of 27070

Q

Which is the dividing meridian between zone descriptions -4 and -5?

🔍 Key Concepts

• Zone descriptions (ZD) and their relationship to time zones (1 hour = 15° of longitude) • How to find the central meridian for a given zone description using ZD × 15° • How to locate the boundary meridians halfway between adjacent central meridians

💭 Think About

• First, calculate the central meridians for ZD -4 and ZD -5, then think about where their midpoint lies in longitude • Decide whether these particular ZD values apply east or west of Greenwich and what sign (E or W) goes with negative zone descriptions in nautical practice • Compare the longitude you find for the dividing meridian with the answer choices and see which one matches in both degrees and E/W

✅ Before You Answer

• Verify that you are using 15° of longitude per hour of zone description • Make sure you are using the correct sign convention: which side of Greenwich corresponds to negative ZD? • Confirm that the boundary between two zones is exactly halfway (7°30') between their central meridians

Question 1 of 27070

Q

Which is the dividing meridian between zone descriptions -4 and -5?

A

75°00'E

B

60°00'W

C

60°00'E

D

67°30'E

Question 1 / 2707066636ee928f7522a1c5195e2

Question 1 of 2707066636ee928f7522a1c5195e2

Which is the dividing meridian between zone descriptions -4 and -5?

Back

Question 1 of 27070

Q

Which is the dividing meridian between zone descriptions -4 and -5?

🔍 Key Concepts

• Zone descriptions (ZD) and their relationship to time zones (1 hour = 15° of longitude) • How to find the central meridian for a given zone description using ZD × 15° • How to locate the boundary meridians halfway between adjacent central meridians

💭 Think About

• First, calculate the central meridians for ZD -4 and ZD -5, then think about where their midpoint lies in longitude • Decide whether these particular ZD values apply east or west of Greenwich and what sign (E or W) goes with negative zone descriptions in nautical practice • Compare the longitude you find for the dividing meridian with the answer choices and see which one matches in both degrees and E/W

✅ Before You Answer

• Verify that you are using 15° of longitude per hour of zone description • Make sure you are using the correct sign convention: which side of Greenwich corresponds to negative ZD? • Confirm that the boundary between two zones is exactly halfway (7°30') between their central meridians