If a main propulsion shafting arrangement is...

Question 1 / 205eccef9cbacbc34ba4d45a98

Question 1 of 205eccef9cbacbc34ba4d45a98

If a main propulsion shafting arrangement is such that no strut or strut bearing is required, what is an alternative name given to the propeller shaft, which is the section of shafting that the propeller is attached to?

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🔍 Key Concepts

• Propeller shafting arrangement on a vessel and how the shaft sections are named from the engine outward • The difference between a thrust shaft, line shaft, and the shaft that actually carries the propeller • How the presence or absence of a strut bearing affects which shaft section is outboard

💭 Think About

• Picture the shafting from the main engine going aft toward the propeller. Which named section is the one that is furthest aft and actually has the propeller mounted on it? • Ask yourself which shaft name is normally associated with the thrust bearing near the engine, and which name is normally associated with intermediate sections between the engine and the propeller. • If there is no strut or strut bearing, what would you call the last section of shaft that extends out of the hull to carry the propeller?

✅ Before You Answer

• Be sure you know which term is normally used in textbooks and regulations for the aft-most section of shafting that carries the propeller. • Confirm in your study materials which shaft is connected directly to the thrust bearing near the engine, and which term is used for intermediate shafting. • Eliminate any options that are not standard terminology for main propulsion shaft sections on conventional single-screw ships.

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Question 1 of 20

Thrust shaft

Tail shaft

Line shaft

Head shaft

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Question 1 / 205eccef9cbacbc34ba4d45a98

Question 1 of 205eccef9cbacbc34ba4d45a98

Back

Question 1 of 20

5eccef9cbacbc34ba4d45a98

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

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