Question 5 TK01 - Tank Vessel Assistant - Dangerous Liquids

The Correct Answer is C **Explanation for C (adjusting the hose supports):** Pinching (or kinking) of a cargo hose generally occurs because the geometry of the hose connection path is incorrect, often leading to excessive sag or inadequate support at critical points (like where the hose meets the manifold or the ship's rail). Hose supports (such as rollers, saddles, or slings) are specifically designed to manage the weight and curvature of the hose, ensuring it maintains a smooth, acceptable bend radius and prevents it from lying flat or buckling. Therefore, actively adjusting and correctly positioning these supports is the primary and most effective operational method for preventing the hose from being pinched or subjected to undue stress between the vessel and the dock. **Explanation for why other options are incorrect:** * **A) tying off the topping lifts and runners to winch heads:** Topping lifts and runners are rigging components used for operating derricks or cargo gear. Tying them off to winch heads secures the boom position but has no direct functional impact on supporting the cargo hose or preventing it from kinking. * **B) laying out an excess length of hose on deck:** While slack is needed, laying out *excess* length on the deck can actually increase the potential for pinching, especially if the hose hangs too low over the side. The resulting steep downward angle or increased unsupported weight can cause kinking at the manifold connection point or along the span of the hose. The goal is proper length and proper support, not just excess length. * **D) install hose preventers:** "Hose preventers" is not standard terminology for an apparatus designed to prevent pinching or kinking. While specialized devices exist to maintain minimum bend radius (like articulated pipe arms or extreme-use bend restrictors), the primary and operational method for managing standard flexible hoses in a ship-to-shore scenario remains the proper adjustment and placement of the existing **hose supports**.