The device used to retain the packing, that...

Question 1 of 270705eccefa1bacbc34ba4d4716d

The device used to retain the packing, that keeps water from entering the ship through the opening where the propeller shaft passes through the hull, is called a __________.

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Question 1 of 27070

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The device used to retain the packing, that keeps water from entering the ship through the opening where the propeller shaft passes through the hull, is called a __________.

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🔍 Key Concepts

• Shaft sealing arrangements where the propeller shaft exits the hull • Difference between a hawsepipe and machinery/shaft components • Traditional name for the housing that holds packing rings around a moving shaft

💭 Think About

• Think about which part is directly around the propeller shaft where it passes through the hull, and its job in relation to leakage. • Ask yourself: which option is associated with anchor chains, and which are associated with rotating shafts? • Consider older ships with flax or synthetic packing rings around the shaft—what is the metal housing that compresses those rings called?

✅ Before You Answer

• Identify which option is specifically linked to the anchor chain opening in the bow; eliminate that from shaft-sealing choices. • Recall that the packing is squeezed or compressed by a gland or follower—what is the name of the overall housing that this belongs to? • Make sure the term you choose is commonly used in engine room shaft sealing or pump shaft sealing, not in deck fittings.