Question 620General Subjects - Assistant Engineer

70% to pass

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?

ACO2
BHalon 1301
CCartridge-operated dry chemical
DCartridge-operated dry powder
AI Explanation

The correct answer is B) Halon 1301. Halon 1301 is a fire extinguishing agent that is designated as an ozone-depleting substance under the Montreal Protocol. As a result, the production and use of Halon 1301 is controlled and regulated. The other options are incorrect because: A) CO2 is not an ozone-depleting substance. C) Cartridge-operated dry chemical is also not an ozone-depleting substance. D) Cartridge-operated dry powder is also not an ozone-depleting substance.

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