Which of the following fire extinguishing...

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Question 1 of 205eccef9dbacbc34ba4d45f4a

Which of the following fire extinguishing agents which may be found aboard ship is designated as an ozone-depleting substance as defined in the Montreal Protocol on Substances that Deplete the Ozone Layer and is controlled as a result?

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🔍 Key Concepts

• Montreal Protocol controls certain chemicals that damage the ozone layer • Difference between inert gases (like CO2) and halogenated hydrocarbons (like halons) • Typical uses of fixed firefighting systems on ships (engine room flooding systems, machinery spaces)

💭 Think About

• Think about which of these agents is specifically known worldwide for being phased out or tightly controlled due to ozone depletion concerns • Ask yourself: which choice is a halogenated agent, and which are just gases or powders that do not harm the ozone layer? • Consider which agent you would most likely find in older fixed flooding systems that many ships have had to replace or carefully manage under environmental rules

✅ Before You Answer

• Identify which option is a halogenated agent used in fixed systems, rather than a simple gas or dry powder • Confirm which agent is explicitly referenced in environmental and maritime safety discussions as an ozone-depleting substance • Eliminate choices that are inert gases (like CO2) or solid powder agents, since these are not classified as ozone-depleting under the Montreal Protocol

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