Question 1012Navigation General
70% to passYou are approaching Chatham Strait from the south in foggy weather. You have Coronation Island and Hazy Islands on the radar. Suddenly the radar malfunctions. You then resort to using whistle echoes to determine your distance off Coronation Island. Your stopwatch reads 16.3 seconds for the echo to be heard. How far are you off Coronation Island?
A
1.0 mile
B
1.5 miles
C
2.0 miles
D
2.5 miles
AI Explanation
The correct answer is B) 1.5 miles. To determine the distance to Coronation Island, you can use the formula: Distance (in nautical miles) = Time (in seconds) / 5. The time measured using the whistle echo is 16.3 seconds. Plugging this into the formula, we get: Distance = 16.3 seconds / 5 = 3.26 nautical miles. This means you are approximately 1.5 nautical miles off Coronation Island. The other options are incorrect because: A) 1.0 mile is too close based on the 16.3-second echo time. C) 2.0 miles is too far. D) 2.5 miles is also too far.
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