Which of the following refrigerants which...

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Question 1 of 205eccef9dbacbc34ba4d45f4b

Which of the following refrigerants 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 focus on substances that damage the stratospheric ozone layer • Difference between CFCs, HCFCs, and HFCs refrigerants • How older "Freon" types compare to newer environmentally friendlier refrigerants

💭 Think About

• Which of these refrigerants is historically known as a CFC that was widely used and then phased out because of ozone depletion? • Which of these refrigerants are newer blends or HFCs developed to replace ozone-depleting substances? • Think about which refrigerant you are most likely to find on very old systems versus modern shipboard installations.

✅ Before You Answer

• Identify which option is a CFC with a high ozone depletion potential (ODP) • Verify which choices are HFC or blends with zero ODP, designed as replacements • Recall that the Montreal Protocol specifically targeted CFCs and most HCFCs, not the later HFC-only blends.

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