DLC 4 exam 2024 with correct answers
After the initial cleaning and cooling in an inert gas system the gas is passed through what device for final preparation? correct answersDemister Which method is used to supply inert gas from a flue gas system to the cargo tanks? correct answersHigh Capacity fan A cargo tank used as a source tank for crude oil washing must be de-bottomed at leaset _______ before COW correct answers1 meter Crude Oil used as the supply for COW should be correct answersAll of the above You are planning to use a crude oil washing system. What precaution must be taken correct answersIt must be de-bottomed and the level lowered by at least one meter What is not a requirement for the safe and effective use of a crude oil washing system? correct answersUse portable washing machines to reach areas obscured by structural members in the tanks What is the major function of the demister in an inert gas system? correct answersRemoves any leftover water after the gas has been scrubbed. You are on an inerted tankship. A low-pressure alarm must be set to cause an audible and visual alarm if the pressure in the tanks cannot be maintained at more than correct answers100 mm water gauge
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