Question 68 ONC01 - Master/Chief Mate Unlimited Tonnage
What term indicates the immersed body of the vessel aft of the parallel mid-body?
The Correct Answer is B **Explanation for B (Run):** The term "Run" refers specifically to the tapering underwater body of the vessel from the point where the parallel mid-body ends all the way to the sternpost. It describes the immersed hull shape aft of the middle portion of the ship, which is designed to allow water to flow smoothly and efficiently towards the propeller. Therefore, "Run" correctly indicates the immersed body of the vessel aft of the parallel mid-body. **Why other options are incorrect:** * **A) Stern:** The stern is the extreme aftermost end of the ship, referring to the entire structural area (above and below water). It is a location or a structural part, not the specific term for the shape of the immersed hull section immediately following the parallel body. * **C) Counter:** The counter (or counter stern) refers to the overhanging part of the stern above the water, particularly in older ship designs. It is specifically an above-water feature of the stern, not the immersed body section mentioned in the question. * **D) Flow:** While related to the movement of water around the hull, "Flow" is a general description of motion (hydrodynamic flow). It is not a specific navigational or naval architecture term used to name the section of the hull aft of the parallel mid-body.
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