Question 23 TK02 - Tank Vessel Assistant - Liquefied Gas

The Correct Answer is C **Explanation for Option C (Correct Answer):** Pinching (or kinking) of the cargo hose occurs when the physical configuration of the hose run creates a tight bend, often due to improper sagging or elevation. Hose supports (such as rollers, saddles, or fixed supports on the vessel and/or dock) are specifically designed to manage the weight and curvature of the hose, ensuring that the minimum bend radius is maintained and that excessive strain or kinking is avoided. Therefore, actively **adjusting the hose supports** (especially during changes in draft, tide, or vessel movement) is the primary operational method used to maintain a safe and non-pinched geometry of the cargo hose between the vessel and the dock. **Explanation for Incorrect Options:** * **A) tying off the topping lifts and runners to winch heads:** Topping lifts and runners are parts of the crane or derrick rigging used for hoisting and positioning, not for supporting the static cargo hose run. Tying them off to winch heads has no direct bearing on preventing the physical pinching of the hose itself. * **B) laying out an excess length of hose on deck:** While slack is necessary to accommodate vessel movement, an excessive length of hose on deck will merely increase the sag and weight of the hose run, potentially exacerbating kinking or strain where the hose leaves the vessel manifold, rather than preventing pinching in the inter-connection span. * **D) install hose preventers:** "Hose preventers" is not a standard, recognized operational term or piece of equipment designed to stop kinking in a manifold-to-dock transfer arrangement. The mechanisms used to prevent hose failure due to exceeding the bend radius are the hose supports (C) and proper handling procedures.