Question 12 TK01 - Tank Vessel Assistant - Dangerous Liquids

The Correct Answer is D **Why option D ("replace the hose") is correct:** Cargo transfer hoses, especially those handling oil and petroleum products, are critical components in maintaining containment and preventing pollution. A leak, regardless of size, indicates a compromise in the hose's structural integrity. Replacing the faulty hose ensures that the entire system is restored to its safe, functional standard before resuming the high-pressure operation of pumping cargo. This is the only acceptable course of action to guarantee safety and compliance with pollution prevention regulations (such as MARPOL). **Why each of the other options is incorrect:** * **A) repair the hose with a patch:** Using a patch to repair a high-pressure, flexible cargo hose is a temporary, unreliable fix. The patch is likely to fail under the stress of renewed pumping, leading to a potentially larger and more dangerous spill. Patches are not approved for permanent repairs on critical cargo transfer equipment. * **B) notify the terminal superintendent:** While communication with the terminal is essential and must be done (part of standard procedure when stopping an operation), simply notifying the superintendent does not solve the underlying mechanical problem. It is an administrative step, not a corrective action that allows for safe resumption of pumping. * **C) place a large drip pan under the leak and plug the scuppers:** These are necessary preparatory actions for mitigating *any* minor spill (and scuppers should generally be plugged during cargo operations anyway), but they do not address the root cause—the damaged hose. Resuming pumping with a known leak, even if contained by a drip pan, is inherently unsafe and risks exceeding the pan's capacity, resulting in a major spill. The leak itself must be eliminated before pumping resumes.