Question 563 Deck Safety

70% to pass

When fighting a fire in a space containing an IMO class 1 hazardous cargo, the most effective fire fighting procedure is to _______________.

A use water from fire hoses or a sprinkler system
B shut down the ventilation and exclude all air to smother the fire
C activate the fixed CO2 firefighting system
D use high-expansion foam
AI Explanation

You are correct, the most effective firefighting procedure for a fire in a space containing an IMO class 1 hazardous cargo is to use water from fire hoses or a sprinkler system (option A). The reasoning is that class 1 hazardous cargoes are explosives, and using water is the safest and most effective way to fight a fire involving these materials. Water cools the cargo and prevents the fire from spreading. Excluding air (option B) or using CO2 (option C) could cause the explosives to detonate. High-expansion foam (option D) is not recommended for class 1 cargoes. So in summary, using water is the proper firefighting method for IMO class 1 hazardous cargoes based on regulations and safety considerations.

Related Questions
Q@q.QuestionNumber:On the vessel's Fire Control Plan, all parts of a fixed fire suppression system ... Q@q.QuestionNumber:You are scheduled to load 3900 tons of cargo, 45 tons of crew effects and stores... Q@q.QuestionNumber:The rescuer can best provide an airtight seal during mouth-to-mouth resuscitatio... Q@q.QuestionNumber:A class C fire would be burning _______________. Q@q.QuestionNumber:Which step should be taken, if possible, when the vessel must be abandoned becau...

Ready to test your knowledge?

Take a Deck Safety Practice Exam
Official Resources
46 CFR Lifesaving Equipment USCG Marine Safety Center USCG National Maritime Center
← Previous All Questions Next →

Want to practice with timed exams?

Download Coast Guard Exams for the full exam experience with progress tracking.

Get the App