A ship travels 234.02 nautical miles in 24...

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Question 1 of 205eccef9dbacbc34ba4d45e21

A ship travels 234.02 nautical miles in 24 hours at an average propeller speed of 60 RPM. If the propeller pitch is 20.07 feet, what is the propeller slip during this passage?

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5eccef9dbacbc34ba4d45e21

A ship travels 234.02 nautical miles in 24 hours at an average propeller speed of 60 RPM. If the propeller pitch is 20.07 feet, what is the propeller slip during this passage?

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🔍 Key Concepts

• How to compute theoretical distance advanced from propeller data: pitch × revolutions • How to convert between feet and nautical miles (1 NM = 6076 feet is commonly used in exam problems) • Formula for propeller slip as a ratio comparing theoretical distance to actual distance made good

💭 Think About

• First, find how many propeller revolutions occur in 24 hours at 60 RPM. What is the total number of turns? • From the turns and the pitch, compute the theoretical distance the ship would travel with zero slip, then convert that distance to nautical miles. • Compare the theoretical distance to the actual 234.02 NM: is the ship moving less than, or equal to, the theoretical distance? Use that comparison to form a slip ratio that matches one of the options.

✅ Before You Answer

• Be sure you are using feet per revolution for pitch and then converting total feet to nautical miles correctly. • Check that your final slip is expressed as a decimal fraction (not a percentage); if you get a percentage, divide by 100 before comparing to the choices. • Confirm that your calculated slip is a positive number less than 1, since realistic propeller slip in this context should not exceed 100%.

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Question 1 of 205eccef9dbacbc34ba4d45e21

A ship travels 234.02 nautical miles in 24 hours at an average propeller speed of 60 RPM. If the propeller pitch is 20.07 feet, what is the propeller slip during this passage?

Back

Question 1 of 20

5eccef9dbacbc34ba4d45e21

A ship travels 234.02 nautical miles in 24 hours at an average propeller speed of 60 RPM. If the propeller pitch is 20.07 feet, what is the propeller slip during this passage?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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